Java gRPC protobuf未使用kotlin版本编译（Android Studio 3.0）_Java_Android_Android Studio_Gradle_Protocol Buffers

Java gRPC protobuf未使用kotlin版本编译（Android Studio 3.0）

java android android-studio gradle protocol-buffers

Java gRPC protobuf未使用kotlin版本编译（Android Studio 3.0）,java,android,android-studio,gradle,protocol-buffers,Java,Android,Android Studio,Gradle,Protocol Buffers,我创建了一个gRPC项目，非常类似于第一次我用自己的simple.proto文件编译了自己的项目，没有任何错误。我只是复制并粘贴了所有重要的build.gradle部分。我在以下版本中更改了MainActivityKotlin代码，这些版本也起到了作用但现在，我在.proto文件中添加了更多内容，Gradle无法构建我的项目。proto文件是正确的，我已经尝试将它作为一个依赖项添加到CompiledBugkotlin{}和compileReleaseKotlin{}，但没有任何效果。我收到以

我创建了一个gRPC项目，非常类似于

第一次我用自己的simple.proto文件编译了自己的项目，没有任何错误。我只是复制并粘贴了所有重要的build.gradle部分。我在以下版本中更改了MainActivityKotlin代码，这些版本也起到了作用

但现在，我在.proto文件中添加了更多内容，Gradle无法构建我的项目。proto文件是正确的，我已经尝试将它作为一个依赖项添加到CompiledBugkotlin{}和compileReleaseKotlin{}，但没有任何效果。我收到以下错误消息，任务

：generateDebugProto

未定义

但我感到困惑，因为当我在build.gradle中添加一个换行符，并在Android Studio中单击“立即同步”，gradle同步成功完成，在gradle日志中我看到以下几行：

:app:extractDebugProto
:app:extractIncludeDebugProto
:app:extractProto
:app:generateDebugProto

我做错什么了吗？

我的项目build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.2.0'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "com.google.protobuf:protobuf-gradle-plugin:0.8.3"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

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

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

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 26
    ext.buildType =  ""
    defaultConfig {
        applicationId "com.my.appr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            buildType = "Release"
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            buildType = "Debug"
        }
    }
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/debug/java'
        debug.java.srcDirs += 'build/generated/source/proto/debug/grpc'
        debug.java.srcDirs += 'build/generated/source/proto/debug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/release/java'
        release.java.srcDirs += 'build/generated/source/proto/release/grpc'
        release.java.srcDirs += 'build/generated/source/proto/release/javalite'
        main.proto.srcDirs += 'src/main/proto'
    }
    //preBuild.dependsOn(":generateDebugProto")
}


protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.5.0'
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.8.0' // CURRENT_GRPC_VERSION
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'io.grpc:grpc-okhttp:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-protobuf-lite:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-stub:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'javax.annotation:javax.annotation-api:1.2'
}


//preBuild.dependsOn ":generate"+buildType+"proto"

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 26
    ext.buildType =  ""
    defaultConfig {
        applicationId "com.my.appr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            buildType = "Release"
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            buildType = "Debug"
        }
    }
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/debug/java'
        debug.java.srcDirs += 'build/generated/source/proto/debug/grpc'
        debug.java.srcDirs += 'build/generated/source/proto/debug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/release/java'
        release.java.srcDirs += 'build/generated/source/proto/release/grpc'
        release.java.srcDirs += 'build/generated/source/proto/release/javalite'
        main.proto.srcDirs += 'src/main/proto'
    }
    //preBuild.dependsOn(":generateDebugProto")
}


protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.5.0'
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.8.0' // CURRENT_GRPC_VERSION
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.builtins {    ///////////////////////////////7
                remove java    // THIS IS THE SOLUTION      //
            }                  ///////////////////////////////
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'io.grpc:grpc-okhttp:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-protobuf-lite:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-stub:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'javax.annotation:javax.annotation-api:1.2'
}


//preBuild.dependsOn ":generate"+buildType+"proto"

我的模块级build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.2.0'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "com.google.protobuf:protobuf-gradle-plugin:0.8.3"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

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

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

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 26
    ext.buildType =  ""
    defaultConfig {
        applicationId "com.my.appr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            buildType = "Release"
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            buildType = "Debug"
        }
    }
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/debug/java'
        debug.java.srcDirs += 'build/generated/source/proto/debug/grpc'
        debug.java.srcDirs += 'build/generated/source/proto/debug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/release/java'
        release.java.srcDirs += 'build/generated/source/proto/release/grpc'
        release.java.srcDirs += 'build/generated/source/proto/release/javalite'
        main.proto.srcDirs += 'src/main/proto'
    }
    //preBuild.dependsOn(":generateDebugProto")
}


protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.5.0'
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.8.0' // CURRENT_GRPC_VERSION
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'io.grpc:grpc-okhttp:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-protobuf-lite:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-stub:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'javax.annotation:javax.annotation-api:1.2'
}


//preBuild.dependsOn ":generate"+buildType+"proto"

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 26
    ext.buildType =  ""
    defaultConfig {
        applicationId "com.my.appr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            buildType = "Release"
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            buildType = "Debug"
        }
    }
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/debug/java'
        debug.java.srcDirs += 'build/generated/source/proto/debug/grpc'
        debug.java.srcDirs += 'build/generated/source/proto/debug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/release/java'
        release.java.srcDirs += 'build/generated/source/proto/release/grpc'
        release.java.srcDirs += 'build/generated/source/proto/release/javalite'
        main.proto.srcDirs += 'src/main/proto'
    }
    //preBuild.dependsOn(":generateDebugProto")
}


protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.5.0'
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.8.0' // CURRENT_GRPC_VERSION
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.builtins {    ///////////////////////////////7
                remove java    // THIS IS THE SOLUTION      //
            }                  ///////////////////////////////
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'io.grpc:grpc-okhttp:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-protobuf-lite:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-stub:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'javax.annotation:javax.annotation-api:1.2'
}


//preBuild.dependsOn ":generate"+buildType+"proto"

4个小时后我就可以解决这个问题了

出于某种奇怪的原因，我不得不添加这个代码块：

task.builtins {
    remove java
}

到我的模块级build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.2.0'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "com.google.protobuf:protobuf-gradle-plugin:0.8.3"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

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

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

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 26
    ext.buildType =  ""
    defaultConfig {
        applicationId "com.my.appr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            buildType = "Release"
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            buildType = "Debug"
        }
    }
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/debug/java'
        debug.java.srcDirs += 'build/generated/source/proto/debug/grpc'
        debug.java.srcDirs += 'build/generated/source/proto/debug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/release/java'
        release.java.srcDirs += 'build/generated/source/proto/release/grpc'
        release.java.srcDirs += 'build/generated/source/proto/release/javalite'
        main.proto.srcDirs += 'src/main/proto'
    }
    //preBuild.dependsOn(":generateDebugProto")
}


protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.5.0'
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.8.0' // CURRENT_GRPC_VERSION
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'io.grpc:grpc-okhttp:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-protobuf-lite:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-stub:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'javax.annotation:javax.annotation-api:1.2'
}


//preBuild.dependsOn ":generate"+buildType+"proto"

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 26
    ext.buildType =  ""
    defaultConfig {
        applicationId "com.my.appr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            buildType = "Release"
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            buildType = "Debug"
        }
    }
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/debug/java'
        debug.java.srcDirs += 'build/generated/source/proto/debug/grpc'
        debug.java.srcDirs += 'build/generated/source/proto/debug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/release/java'
        release.java.srcDirs += 'build/generated/source/proto/release/grpc'
        release.java.srcDirs += 'build/generated/source/proto/release/javalite'
        main.proto.srcDirs += 'src/main/proto'
    }
    //preBuild.dependsOn(":generateDebugProto")
}


protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.5.0'
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.8.0' // CURRENT_GRPC_VERSION
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.builtins {    ///////////////////////////////7
                remove java    // THIS IS THE SOLUTION      //
            }                  ///////////////////////////////
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'io.grpc:grpc-okhttp:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-protobuf-lite:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-stub:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'javax.annotation:javax.annotation-api:1.2'
}


//preBuild.dependsOn ":generate"+buildType+"proto"

4个小时后我就可以解决这个问题了

出于某种奇怪的原因，我不得不添加这个代码块：

task.builtins {
    remove java
}

到我的模块级build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.2.0'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "com.google.protobuf:protobuf-gradle-plugin:0.8.3"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

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

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

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 26
    ext.buildType =  ""
    defaultConfig {
        applicationId "com.my.appr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            buildType = "Release"
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            buildType = "Debug"
        }
    }
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/debug/java'
        debug.java.srcDirs += 'build/generated/source/proto/debug/grpc'
        debug.java.srcDirs += 'build/generated/source/proto/debug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/release/java'
        release.java.srcDirs += 'build/generated/source/proto/release/grpc'
        release.java.srcDirs += 'build/generated/source/proto/release/javalite'
        main.proto.srcDirs += 'src/main/proto'
    }
    //preBuild.dependsOn(":generateDebugProto")
}


protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.5.0'
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.8.0' // CURRENT_GRPC_VERSION
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'io.grpc:grpc-okhttp:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-protobuf-lite:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-stub:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'javax.annotation:javax.annotation-api:1.2'
}


//preBuild.dependsOn ":generate"+buildType+"proto"

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'com.google.protobuf'

android {
    compileSdkVersion 26
    ext.buildType =  ""
    defaultConfig {
        applicationId "com.my.appr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            buildType = "Release"
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            buildType = "Debug"
        }
    }
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/debug/java'
        debug.java.srcDirs += 'build/generated/source/proto/debug/grpc'
        debug.java.srcDirs += 'build/generated/source/proto/debug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/release/java'
        release.java.srcDirs += 'build/generated/source/proto/release/grpc'
        release.java.srcDirs += 'build/generated/source/proto/release/javalite'
        main.proto.srcDirs += 'src/main/proto'
    }
    //preBuild.dependsOn(":generateDebugProto")
}


protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.5.0'
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.8.0' // CURRENT_GRPC_VERSION
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.builtins {    ///////////////////////////////7
                remove java    // THIS IS THE SOLUTION      //
            }                  ///////////////////////////////
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'io.grpc:grpc-okhttp:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-protobuf-lite:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'io.grpc:grpc-stub:1.8.0' // CURRENT_GRPC_VERSION
    implementation 'javax.annotation:javax.annotation-api:1.2'
}


//preBuild.dependsOn ":generate"+buildType+"proto"