安卓工作室2.1.3 - DefaultSourceDirectorySet问题

Question

今天早上我更新了Android Studio从2.1.2到2.1.3，但是遇到以下gradle同步错误：

错误：无法找到方法'org.gradle.api.internal.file.DefaultSourceDirectorySet.(Ljava/lang/String;Ljava/lang/String;Lorg/gradle/api/internal/file/FileResolver;)V'。

我很确定它与以下库项目相关：

buildscript {
    repositories {
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.3'
        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.7.0'
    }
}

apply plugin: 'com.android.library'
apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 23
    buildToolsVersion "22.0.1"
    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        debug {
            minifyEnabled false
        }
    }
    sourceSets {
        main {
            proto {
                srcDir 'src/main/protos'
            }
            java {
                srcDir 'src/main/java'
            }
            manifest {
                srcFile 'src/main/AndroidManifest.xml'
            }
        }
    }
}


repositories {
    mavenCentral()
}
dependencies {
    compile 'com.android.support:support-v4:+'
    compile 'com.android.support:recyclerview-v7:+'
    compile 'com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-2'
    compile project(':wallpaperpicker-resources')
}
protobuf {
    // Configure the protoc executable
    protoc {
        // Download from repositories
        artifact = 'com.google.protobuf:protoc:3.0.0-alpha-3'
    }
}

看起来我的先前的gradle插件版本是1.3.0 - 我是否错过了与sourceSets块相关的某些更改？

- Ryan Moore

---

你尝试过清理项目和Gradle缓存吗？ - Anton Malyshev

我执行了rm -rf <HOME>/.gradle命令，清理了项目并使缓存无效。 - Ryan Moore

Answer 1

尝试更新protobuf版本： classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.0'

- ced

Answer 2

ced的回答引导我找到了解决方案。看起来较新版本的gradle、Android Studio gradle插件和谷歌protoc插件无法很好地协作。如ced所指出，我必须升级谷歌protoc插件，但这与0.7.0相比是一个巨大的变化。不再推荐使用javanano protoc编译器（我根本无法让它工作）。这就是我最终使用的javalite解决方案。

buildscript {
    repositories {
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.3'
        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.0'
    }
}

apply plugin: 'com.android.library'
apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"
    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        debug {
            minifyEnabled false
        }
    }
    sourceSets {
        main {
            proto {
                srcDir 'src/main/proto'
            }
            java {
                srcDirs = ['src/main/java','$buildDir/generated-sources/release/javalite']
            }
            manifest {
                srcFile 'src/main/AndroidManifest.xml'
            }
        }
    }
}


repositories {
    mavenCentral()
}
dependencies {
    compile 'com.android.support:support-v4:23.2.0'
    compile 'com.android.support:recyclerview-v7:23.2.0'
    compile 'com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-2'
    compile 'com.google.protobuf:protoc-gen-javalite:3.0.0'
    compile 'com.google.protobuf:protobuf-lite:3.0.0'
    compile project(':wallpaperpicker-resources')
}

protobuf {
    generatedFilesBaseDir = "$projectDir/build/generated-sources"
    protoc {
        // Download from repositories
        artifact = 'com.google.protobuf:protoc:3.0.0'
    }
    plugins {
        javalite {
            // The codegen for lite comes as a separate artifact
            artifact = 'com.google.protobuf:protoc-gen-javalite:3.0.0'
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.plugins {
                javalite {
                    //remove some of the javalite extra packaging
                    outputSubDir = ''
                }
            }
        }
    }
}

apply plugin: 'idea'

idea {
    module {
        sourceDirs += file("$buildDir/generated-sources/release/javalite");
    }
}

- Ryan Moore