"package io.grpc does not exist" 和 "static import only from classes and interfaces" 尝试生成 Java Protobuf 代码时
"package io.grpc does not exist" and "static import only from classes and interfaces" when trying to generate Java Protobuf code
我正在尝试关注此博客 post、https://redbyte.eu/en/blog/calling-java-from-go-using-grpc/, in this repository, https://github.com/khpeek/pdf-parser。在运行./gradlew build之后，项目结构如下：
.
├── build
│ ├── classes
│ │ └── java
│ │ └── main
│ ├── extracted-include-protos
│ │ └── main
│ │ └── google
│ │ └── protobuf
│ │ ├── any.proto
│ │ ├── api.proto
│ │ ├── compiler
│ │ │ └── plugin.proto
│ │ ├── descriptor.proto
│ │ ├── duration.proto
│ │ ├── empty.proto
│ │ ├── field_mask.proto
│ │ ├── source_context.proto
│ │ ├── struct.proto
│ │ ├── timestamp.proto
│ │ ├── type.proto
│ │ └── wrappers.proto
│ ├── extracted-protos
│ │ └── main
│ ├── generated
│ │ ├── source
│ │ │ └── proto
│ │ │ └── main
│ │ │ ├── grpc
│ │ │ │ └── eu
│ │ │ │ └── redbyte
│ │ │ │ └── pdfparser
│ │ │ │ └── grpc
│ │ │ │ └── PDFParserGrpc.java
│ │ │ └── java
│ │ │ └── eu
│ │ │ └── redbyte
│ │ │ └── pdfparser
│ │ │ └── grpc
│ │ │ ├── PDFParserApi.java
│ │ │ ├── ParserRequest.java
│ │ │ ├── ParserRequestOrBuilder.java
│ │ │ ├── ParserResponse.java
│ │ │ └── ParserResponseOrBuilder.java
│ │ └── sources
│ │ ├── annotationProcessor
│ │ │ └── java
│ │ │ └── main
│ │ └── headers
│ │ └── java
│ │ └── main
│ └── tmp
│ ├── compileJava
│ │ └── source-classes-mapping.txt
│ └── jar
│ └── MANIFEST.MF
├── build.gradle
├── gradle
│ └── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── src
└── main
└── proto
└── pdfparserapi.proto
40 directories, 26 files
问题是 ./gradlew build returns 以下错误：
> ./gradlew build
> Task :compileJava FAILED
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:3: error: package io.grpc does not exist
import static io.grpc.MethodDescriptor.generateFullMethodName;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:3: error: static import only from classes and interfaces
import static io.grpc.MethodDescriptor.generateFullMethodName;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:4: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.asyncBidiStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:4: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.asyncBidiStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:5: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.asyncClientStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:5: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.asyncClientStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:6: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.asyncServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:6: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.asyncServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:7: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.asyncUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:7: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.asyncUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:8: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.blockingServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:8: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.blockingServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:9: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.blockingUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:9: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.blockingUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:10: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.futureUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:10: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.futureUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:11: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncBidiStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:11: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncBidiStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:12: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncClientStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:12: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncClientStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:13: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:13: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:14: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:14: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:15: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:15: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:16: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:16: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:20: error: cannot find symbol
@javax.annotation.Generated(
^
symbol: class Generated
location: package javax.annotation
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:30: error: package io.grpc does not exist
private static volatile io.grpc.MethodDescriptor<eu.redbyte.pdfparser.grpc.ParserRequest,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:38: error: package io.grpc does not exist
public static io.grpc.MethodDescriptor<eu.redbyte.pdfparser.grpc.ParserRequest,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:65: error: package io.grpc does not exist
public static PDFParserStub newStub(io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:111: error: package io.grpc.stub does not exist
public static final class PDFParserStub extends io.grpc.stub.AbstractStub<PDFParserStub> {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:73: error: package io.grpc does not exist
io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:138: error: package io.grpc.stub does not exist
public static final class PDFParserBlockingStub extends io.grpc.stub.AbstractStub<PDFParserBlockingStub> {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:81: error: package io.grpc does not exist
io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:164: error: package io.grpc.stub does not exist
public static final class PDFParserFutureStub extends io.grpc.stub.AbstractStub<PDFParserFutureStub> {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:263: error: package io.grpc does not exist
private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:265: error: package io.grpc does not exist
public static io.grpc.ServiceDescriptor getServiceDescriptor() {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:165: error: package io.grpc does not exist
private PDFParserFutureStub(io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:169: error: package io.grpc does not exist
private PDFParserFutureStub(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:170: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:175: error: package io.grpc does not exist
protected PDFParserFutureStub build(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:176: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:139: error: package io.grpc does not exist
private PDFParserBlockingStub(io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:143: error: package io.grpc does not exist
private PDFParserBlockingStub(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:144: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:149: error: package io.grpc does not exist
protected PDFParserBlockingStub build(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:150: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:112: error: package io.grpc does not exist
private PDFParserStub(io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:116: error: package io.grpc does not exist
private PDFParserStub(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:117: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:122: error: package io.grpc does not exist
protected PDFParserStub build(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:123: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:130: error: package io.grpc.stub does not exist
io.grpc.stub.StreamObserver<eu.redbyte.pdfparser.grpc.ParserResponse> responseObserver) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:87: error: package io.grpc does not exist
public static abstract class PDFParserImplBase implements io.grpc.BindableService {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:92: error: package io.grpc.stub does not exist
io.grpc.stub.StreamObserver<eu.redbyte.pdfparser.grpc.ParserResponse> responseObserver) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:96: error: package io.grpc does not exist
@java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:192: error: package io.grpc.stub.ServerCalls does not exist
io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:193: error: package io.grpc.stub.ServerCalls does not exist
io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:194: error: package io.grpc.stub.ServerCalls does not exist
io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:195: error: package io.grpc.stub.ServerCalls does not exist
io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:206: error: package io.grpc.stub does not exist
public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:220: error: package io.grpc.stub does not exist
io.grpc.stub.StreamObserver<Resp> responseObserver) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:219: error: package io.grpc.stub does not exist
public io.grpc.stub.StreamObserver<Req> invoke(
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:229: error: package io.grpc.protobuf does not exist
implements io.grpc.protobuf.ProtoFileDescriptorSupplier, io.grpc.protobuf.ProtoServiceDescriptorSupplier {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:229: error: package io.grpc.protobuf does not exist
implements io.grpc.protobuf.ProtoFileDescriptorSupplier, io.grpc.protobuf.ProtoServiceDescriptorSupplier {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:250: error: package io.grpc.protobuf does not exist
implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:33: error: package io.grpc.stub.annotations does not exist
@io.grpc.stub.annotations.RpcMethod(
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:37: error: package io.grpc.MethodDescriptor does not exist
methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:40: error: package io.grpc does not exist
io.grpc.MethodDescriptor<eu.redbyte.pdfparser.grpc.ParserRequest, eu.redbyte.pdfparser.grpc.ParserResponse> getParseMethod;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:46: error: package io.grpc.MethodDescriptor does not exist
.setType(io.grpc.MethodDescriptor.MethodType.UNARY)
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:45: error: package io.grpc does not exist
io.grpc.MethodDescriptor.<eu.redbyte.pdfparser.grpc.ParserRequest, eu.redbyte.pdfparser.grpc.ParserResponse>newBuilder()
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:47: error: cannot find symbol
.setFullMethodName(generateFullMethodName(
^
symbol: method generateFullMethodName(String,String)
location: class PDFParserGrpc
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:50: error: package io.grpc.protobuf does not exist
.setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:52: error: package io.grpc.protobuf does not exist
.setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:96: error: method does not override or implement a method from a supertype
@java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:97: error: package io.grpc does not exist
return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:100: error: cannot find symbol
asyncUnaryCall(
^
symbol: method asyncUnaryCall(MethodHandlers<ParserRequest,ParserResponse>)
location: class PDFParserImplBase
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:121: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:132: error: cannot find symbol
getChannel().newCall(getParseMethod(), getCallOptions()), request, responseObserver);
^
symbol: method getChannel()
location: class PDFParserStub
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:132: error: cannot find symbol
getChannel().newCall(getParseMethod(), getCallOptions()), request, responseObserver);
^
symbol: method getCallOptions()
location: class PDFParserStub
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:148: error: method does not override or implement a method from a supertype
@java.lang.Override
^
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:217: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:232: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:237: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:257: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:266: error: package io.grpc does not exist
io.grpc.ServiceDescriptor result = serviceDescriptor;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:271: error: package io.grpc does not exist
serviceDescriptor = result = io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
^
96 errors
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.7/userguide/command_line_interface.html#sec:command_line_warnings
BUILD FAILED in 810ms
4 actionable tasks: 1 executed, 3 up-to-date
我尝试将以下行添加到 build.gradle、
中的 dependencies
compile group: 'io.grpc', name: 'protoc-gen-grpc-java', version: '1.14.0'
但这导致了同样的错误。关于如何修复 Gradle 构建的任何想法？
io.grpc.* 在 grpc-api 中（大多数其他 grpc 依赖项将依赖于此）。 io.grpc.stub.* 在 grpc-stub 中。 io.grpc.protobuf.* 在 grpc-protobuf 中。 javax.annotation.Generated 可以在 Tomcat 的 annotations-api 中找到。
所以需要添加（如grpc-java readme中所述）：
implementation "io.grpc:grpc-protobuf:1.14.0"
implementation "io.grpc:grpc-stub:1.14.0"
compileOnly "org.apache.tomcat:annotations-api:6.0.53"
gRPC v1.14.0 已经很老了；您应该升级到较新的版本以供实际使用。要真正 运行，您可能还需要 implementation 'io.grpc:grpc-netty-shaded:1.34.1'。
我正在尝试关注此博客 post、https://redbyte.eu/en/blog/calling-java-from-go-using-grpc/, in this repository, https://github.com/khpeek/pdf-parser。在运行./gradlew build之后，项目结构如下：
.
├── build
│ ├── classes
│ │ └── java
│ │ └── main
│ ├── extracted-include-protos
│ │ └── main
│ │ └── google
│ │ └── protobuf
│ │ ├── any.proto
│ │ ├── api.proto
│ │ ├── compiler
│ │ │ └── plugin.proto
│ │ ├── descriptor.proto
│ │ ├── duration.proto
│ │ ├── empty.proto
│ │ ├── field_mask.proto
│ │ ├── source_context.proto
│ │ ├── struct.proto
│ │ ├── timestamp.proto
│ │ ├── type.proto
│ │ └── wrappers.proto
│ ├── extracted-protos
│ │ └── main
│ ├── generated
│ │ ├── source
│ │ │ └── proto
│ │ │ └── main
│ │ │ ├── grpc
│ │ │ │ └── eu
│ │ │ │ └── redbyte
│ │ │ │ └── pdfparser
│ │ │ │ └── grpc
│ │ │ │ └── PDFParserGrpc.java
│ │ │ └── java
│ │ │ └── eu
│ │ │ └── redbyte
│ │ │ └── pdfparser
│ │ │ └── grpc
│ │ │ ├── PDFParserApi.java
│ │ │ ├── ParserRequest.java
│ │ │ ├── ParserRequestOrBuilder.java
│ │ │ ├── ParserResponse.java
│ │ │ └── ParserResponseOrBuilder.java
│ │ └── sources
│ │ ├── annotationProcessor
│ │ │ └── java
│ │ │ └── main
│ │ └── headers
│ │ └── java
│ │ └── main
│ └── tmp
│ ├── compileJava
│ │ └── source-classes-mapping.txt
│ └── jar
│ └── MANIFEST.MF
├── build.gradle
├── gradle
│ └── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── src
└── main
└── proto
└── pdfparserapi.proto
40 directories, 26 files
问题是 ./gradlew build returns 以下错误：
> ./gradlew build
> Task :compileJava FAILED
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:3: error: package io.grpc does not exist
import static io.grpc.MethodDescriptor.generateFullMethodName;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:3: error: static import only from classes and interfaces
import static io.grpc.MethodDescriptor.generateFullMethodName;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:4: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.asyncBidiStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:4: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.asyncBidiStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:5: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.asyncClientStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:5: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.asyncClientStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:6: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.asyncServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:6: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.asyncServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:7: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.asyncUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:7: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.asyncUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:8: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.blockingServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:8: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.blockingServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:9: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.blockingUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:9: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.blockingUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:10: error: package io.grpc.stub does not exist
import static io.grpc.stub.ClientCalls.futureUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:10: error: static import only from classes and interfaces
import static io.grpc.stub.ClientCalls.futureUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:11: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncBidiStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:11: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncBidiStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:12: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncClientStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:12: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncClientStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:13: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:13: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncServerStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:14: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:14: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:15: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:15: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:16: error: package io.grpc.stub does not exist
import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:16: error: static import only from classes and interfaces
import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:20: error: cannot find symbol
@javax.annotation.Generated(
^
symbol: class Generated
location: package javax.annotation
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:30: error: package io.grpc does not exist
private static volatile io.grpc.MethodDescriptor<eu.redbyte.pdfparser.grpc.ParserRequest,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:38: error: package io.grpc does not exist
public static io.grpc.MethodDescriptor<eu.redbyte.pdfparser.grpc.ParserRequest,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:65: error: package io.grpc does not exist
public static PDFParserStub newStub(io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:111: error: package io.grpc.stub does not exist
public static final class PDFParserStub extends io.grpc.stub.AbstractStub<PDFParserStub> {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:73: error: package io.grpc does not exist
io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:138: error: package io.grpc.stub does not exist
public static final class PDFParserBlockingStub extends io.grpc.stub.AbstractStub<PDFParserBlockingStub> {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:81: error: package io.grpc does not exist
io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:164: error: package io.grpc.stub does not exist
public static final class PDFParserFutureStub extends io.grpc.stub.AbstractStub<PDFParserFutureStub> {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:263: error: package io.grpc does not exist
private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:265: error: package io.grpc does not exist
public static io.grpc.ServiceDescriptor getServiceDescriptor() {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:165: error: package io.grpc does not exist
private PDFParserFutureStub(io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:169: error: package io.grpc does not exist
private PDFParserFutureStub(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:170: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:175: error: package io.grpc does not exist
protected PDFParserFutureStub build(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:176: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:139: error: package io.grpc does not exist
private PDFParserBlockingStub(io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:143: error: package io.grpc does not exist
private PDFParserBlockingStub(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:144: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:149: error: package io.grpc does not exist
protected PDFParserBlockingStub build(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:150: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:112: error: package io.grpc does not exist
private PDFParserStub(io.grpc.Channel channel) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:116: error: package io.grpc does not exist
private PDFParserStub(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:117: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:122: error: package io.grpc does not exist
protected PDFParserStub build(io.grpc.Channel channel,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:123: error: package io.grpc does not exist
io.grpc.CallOptions callOptions) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:130: error: package io.grpc.stub does not exist
io.grpc.stub.StreamObserver<eu.redbyte.pdfparser.grpc.ParserResponse> responseObserver) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:87: error: package io.grpc does not exist
public static abstract class PDFParserImplBase implements io.grpc.BindableService {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:92: error: package io.grpc.stub does not exist
io.grpc.stub.StreamObserver<eu.redbyte.pdfparser.grpc.ParserResponse> responseObserver) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:96: error: package io.grpc does not exist
@java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:192: error: package io.grpc.stub.ServerCalls does not exist
io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:193: error: package io.grpc.stub.ServerCalls does not exist
io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:194: error: package io.grpc.stub.ServerCalls does not exist
io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:195: error: package io.grpc.stub.ServerCalls does not exist
io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:206: error: package io.grpc.stub does not exist
public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:220: error: package io.grpc.stub does not exist
io.grpc.stub.StreamObserver<Resp> responseObserver) {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:219: error: package io.grpc.stub does not exist
public io.grpc.stub.StreamObserver<Req> invoke(
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:229: error: package io.grpc.protobuf does not exist
implements io.grpc.protobuf.ProtoFileDescriptorSupplier, io.grpc.protobuf.ProtoServiceDescriptorSupplier {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:229: error: package io.grpc.protobuf does not exist
implements io.grpc.protobuf.ProtoFileDescriptorSupplier, io.grpc.protobuf.ProtoServiceDescriptorSupplier {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:250: error: package io.grpc.protobuf does not exist
implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:33: error: package io.grpc.stub.annotations does not exist
@io.grpc.stub.annotations.RpcMethod(
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:37: error: package io.grpc.MethodDescriptor does not exist
methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:40: error: package io.grpc does not exist
io.grpc.MethodDescriptor<eu.redbyte.pdfparser.grpc.ParserRequest, eu.redbyte.pdfparser.grpc.ParserResponse> getParseMethod;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:46: error: package io.grpc.MethodDescriptor does not exist
.setType(io.grpc.MethodDescriptor.MethodType.UNARY)
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:45: error: package io.grpc does not exist
io.grpc.MethodDescriptor.<eu.redbyte.pdfparser.grpc.ParserRequest, eu.redbyte.pdfparser.grpc.ParserResponse>newBuilder()
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:47: error: cannot find symbol
.setFullMethodName(generateFullMethodName(
^
symbol: method generateFullMethodName(String,String)
location: class PDFParserGrpc
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:50: error: package io.grpc.protobuf does not exist
.setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:52: error: package io.grpc.protobuf does not exist
.setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:96: error: method does not override or implement a method from a supertype
@java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:97: error: package io.grpc does not exist
return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:100: error: cannot find symbol
asyncUnaryCall(
^
symbol: method asyncUnaryCall(MethodHandlers<ParserRequest,ParserResponse>)
location: class PDFParserImplBase
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:121: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:132: error: cannot find symbol
getChannel().newCall(getParseMethod(), getCallOptions()), request, responseObserver);
^
symbol: method getChannel()
location: class PDFParserStub
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:132: error: cannot find symbol
getChannel().newCall(getParseMethod(), getCallOptions()), request, responseObserver);
^
symbol: method getCallOptions()
location: class PDFParserStub
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:148: error: method does not override or implement a method from a supertype
@java.lang.Override
^
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:217: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:232: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:237: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:257: error: method does not override or implement a method from a supertype
@java.lang.Override
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:266: error: package io.grpc does not exist
io.grpc.ServiceDescriptor result = serviceDescriptor;
^
/Users/kurtpeek/go/src/github.com/kurtpeek/pdf-parser/build/generated/source/proto/main/grpc/eu/redbyte/pdfparser/grpc/PDFParserGrpc.java:271: error: package io.grpc does not exist
serviceDescriptor = result = io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
^
96 errors
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.7/userguide/command_line_interface.html#sec:command_line_warnings
BUILD FAILED in 810ms
4 actionable tasks: 1 executed, 3 up-to-date
我尝试将以下行添加到 build.gradle、
dependencies
compile group: 'io.grpc', name: 'protoc-gen-grpc-java', version: '1.14.0'
但这导致了同样的错误。关于如何修复 Gradle 构建的任何想法？
io.grpc.* 在 grpc-api 中（大多数其他 grpc 依赖项将依赖于此）。 io.grpc.stub.* 在 grpc-stub 中。 io.grpc.protobuf.* 在 grpc-protobuf 中。 javax.annotation.Generated 可以在 Tomcat 的 annotations-api 中找到。
所以需要添加（如grpc-java readme中所述）：
implementation "io.grpc:grpc-protobuf:1.14.0"
implementation "io.grpc:grpc-stub:1.14.0"
compileOnly "org.apache.tomcat:annotations-api:6.0.53"
gRPC v1.14.0 已经很老了；您应该升级到较新的版本以供实际使用。要真正 运行，您可能还需要 implementation 'io.grpc:grpc-netty-shaded:1.34.1'。