apply plugin: 'com.android.application' apply plugin: 'com.google.protobuf' android { compileSdkVersion 27 defaultConfig { applicationId "io.grpc.helloworldexample" // API level 14+ is required for TLS since Google Play Services v10.2 minSdkVersion 14 targetSdkVersion 27 versionCode 1 versionName "1.0" } buildTypes { debug { minifyEnabled false } release { minifyEnabled true proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } lintOptions { disable 'GoogleAppIndexingWarning', 'HardcodedText', 'InvalidPackage' textReport true textOutput "stdout" } } protobuf { protoc { artifact = 'com.google.protobuf:protoc:3.5.1-1' } plugins { javalite { artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0" } grpc { artifact = 'io.grpc:protoc-gen-grpc-java:1.16.1' // CURRENT_GRPC_VERSION } } generateProtoTasks { all().each { task -> task.plugins { javalite {} grpc { // Options added to --grpc_out option 'lite' } } } } } dependencies { compile 'com.android.support:appcompat-v7:27.0.2' // You need to build grpc-java to obtain these libraries below. compile 'io.grpc:grpc-okhttp:1.16.1' // CURRENT_GRPC_VERSION compile 'io.grpc:grpc-protobuf-lite:1.16.1' // CURRENT_GRPC_VERSION compile 'io.grpc:grpc-stub:1.16.1' // CURRENT_GRPC_VERSION compile 'javax.annotation:javax.annotation-api:1.2' }