gradle集成protobuf

gradle版本為5.2.1
➜  gradle_java git:(master) ✗ ./gradlew build -x test             

FAILURE: Build failed with an exception.

* What went wrong:
org/gradle/api/attributes/LibraryElements
> org.gradle.api.attributes.LibraryElements

解決方法：使用5.6版本以上的gradle
修改gradle-wrapper.properties中的

distributionUrl=https\://services.gradle.org/distributions/gradle-6.2-all.zip

gradle工程中引入protobuf

plugins {
 id 'com.google.protobuf' version "0.8.12"
 id 'java'
}

protobuf {
 generatedFilesBaseDir = "$projectDir/src/generated/"
 protoc {
 path = '/usr/bin/protoc'
 }
}