apply plugin: 'com.android.application' apply plugin: 'com.google.protobuf' android { compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } compileSdkVersion 29 defaultConfig { applicationId "io.grpc.helloworldexample" minSdkVersion 19 targetSdkVersion 29 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:3.19.2' } plugins { grpc { artifact = 'io.grpc:protoc-gen-grpc-java:1.46.0-SNAPSHOT' // CURRENT_GRPC_VERSION } } generateProtoTasks { all().each { task -> task.builtins { java { option 'lite' } } task.plugins { grpc { // Options added to --grpc_out option 'lite' } } } } } dependencies { implementation 'com.android.support:appcompat-v7:27.0.2' // You need to build grpc-java to obtain these libraries below. implementation 'io.grpc:grpc-okhttp:1.46.0-SNAPSHOT' // CURRENT_GRPC_VERSION implementation 'io.grpc:grpc-protobuf-lite:1.46.0-SNAPSHOT' // CURRENT_GRPC_VERSION implementation 'io.grpc:grpc-stub:1.46.0-SNAPSHOT' // CURRENT_GRPC_VERSION implementation 'org.apache.tomcat:annotations-api:6.0.53' }