intellij "Cannot run program "protoc": error=2, No such file or directory"

intellij-protoc

gradle build using
plugin: 'protobuf'
buildscript {
  repositories {
    mavenCentral()
    jcenter()
  }
  
  dependencies {
    classpath 'ws.antonov.gradle.plugins:gradle-plugin-protobuf:0.9.1'
//    classpath 'com.andrewkroh.gradle:gradle-protobuf-plugin:0.3.0'
    classpath 'com.github.jengelman.gradle.plugins:shadow:1.0.2'
  }
}

intellij "Cannot run program "protoc": error=2, No such file or directory"

> which protoc
/usr/local/bin/protoc

> sudo ln -s /usr/local/bin/protoc /usr/bin/protoc