Android- 无法解析 android.arch.persistence.room:runtime:1.0.0

Question

我一直在尝试将房间库依赖项添加到我的项目中。但我一直看到这个错误：

Error:Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve android.arch.persistence.room:runtime:1.0.0.

我已经搜索了很多来解决这个问题，但我不能

build.gradle 项目文件

android {
    compileSdkVersion 25
    defaultConfig {
        applicationId "com.reminder"
        minSdkVersion 24
        targetSdkVersion 25
        buildToolsVersion '26.0.2'
        versionCode 1
        versionName "1.0"
        vectorDrawables.useSupportLibrary = true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}
allprojects {
    repositories {
        jcenter()
        google()
        mavenCentral()
        maven {
            url "https://maven.google.com"
        }
    }
}

dependencies {
  // Room
    implementation "android.arch.persistence.room:runtime:1.0.0"
    annotationProcessor "android.arch.persistence.room:compiler:1.0.0"
}

root build.gradle 文件

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

Answer 1

这样添加：

allprojects {
    repositories {
        jcenter()
        google()
    }
}

和：

dependencies {

    // Room
    implementation "android.arch.persistence.room:runtime:1.0.0"
    annotationProcessor "android.arch.persistence.room:compiler:1.0.0"
}

编辑：

如果您正在使用 Gradle 的离线模式，请禁用离线模式并再次同步 gradle。同步成功后可开启离线模式

离线模式：

File > Settings > From left Pane: Build, Execution, Deployment > Gradle

Change "Offline work" to enable/disable Offline Mode

Android- 无法解析 android.arch.persistence.room:runtime:1.0.0

Android- Could not resolve android.arch.persistence.room:runtime:1.0.0

dependencies

android

gradle

build.gradle

android-room