flutter 无法 运行 在 android 设备上投影

Question

Can't 运行 flutter project，当我尝试 运行 显示此问题时，这是在控制台中看到的错误， 我是 flutter 的新手，请帮助。

The plugin `advance_pdf_viewer` uses a deprecated version of the Android embedding.
To avoid unexpected runtime failures, or future build failures, try to see if this plugin supports the Android V2 embedding. Otherwise, consider removing it since a future release of Flutter will remove these deprecated APIs.
If you are plugin author, take a look at the docs for migrating the plugin to the V2 embedding: https://flutter.dev/go/android-plugin-migration.
"hi": 77 untranslated message(s).
To see a detailed report, use the untranslated-messages-file 
option in the l10n.yaml file:
untranslated-messages-file: desiredFileName.txt
<other option>: <other selection> 


This will generate a JSON format file containing all messages that 
need to be translated.
Launching lib\main_development.dart on RMX3085 in debug mode...
Running Gradle task 'assembleDevelopmentDebug'...
/C:/Users/jassir-pc/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/device_preview-0.7.1/lib/src/state/store.dart:78:31: Error: 'basicLocaleListResolution' is imported from both 'package:flutter/src/widgets/app.dart' and 'package:device_preview/src/locales/locales.dart'.
        final defaultLocale = basicLocaleListResolution(
                              ^^^^^^^^^^^^^^^^^^^^^^^^^


FAILURE: Build failed with an exception.

* Where:
Script 'E:\Program Files\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1005

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDevelopmentDebug'.
> Process 'command 'E:\Program Files\flutter\bin\flutter.bat'' finished with non-zero exit value 1

* 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

BUILD FAILED in 1m 16s
Exception: Gradle task assembleDevelopmentDebug failed with exit code 1

这是build.gradle文件，这个gradle文件有什么问题吗，我是flutter新手，求助。上面我在控制台中粘贴了错误，每当我尝试 运行 项目时都会显示此错误。

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystorePropertiesFile.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
apply plugin: 'com.google.gms.google-services'

android {
    compileSdkVersion 30

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.xyz.app"
        minSdkVersion 21
        targetSdkVersion 30
        ndkVersion "22.0.7026061"
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        multiDexEnabled true
    }

    signingConfigs {
        if (System.getenv("ANDROID_KEYSTORE_PATH")) {
            release {
                storeFile file(System.getenv("ANDROID_KEYSTORE_PATH"))
                keyAlias System.getenv("ANDROID_KEYSTORE_ALIAS")
                keyPassword System.getenv("ANDROID_KEYSTORE_PRIVATE_KEY_PASSWORD")
                storePassword System.getenv("ANDROID_KEYSTORE_PASSWORD")
            }
        } else {
            release {
                keyAlias keystoreProperties['keyAlias']
                keyPassword keystoreProperties['keyPassword']
                storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
                storePassword keystoreProperties['storePassword']
            }
        }
    }

    flavorDimensions "default"
    productFlavors { 
        production {
            dimension "default"
            applicationIdSuffix ""
        }
        staging {
            dimension "default"
            applicationIdSuffix ""
        }        
        development {
            dimension "default"
            applicationIdSuffix ""
        }
    }

    buildTypes {
        release {
            signingConfig signingConfigs.release
            minifyEnabled true
            useProguard true
            proguardFiles getDefaultProguardFile('proguard-android.txt')
        }
        debug {
            signingConfig signingConfigs.debug
        }
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation platform('com.google.firebase:firebase-bom:27.0.0')
    implementation 'com.google.firebase:firebase-analytics'
}

Answer 1

您可以为 运行 这个项目使用构建风格，有一些包无效安全，在 运行 项目的终端中使用 no sound safety 命令。

flutter build apk --flavor dev -t lib/main_dev.dart

使用这个命令运行这个项目