使用调用Dataflow Pipeline的Servlet部署GAE灵活项目时出错

I'm trying to deploy an App Engine Flexible Environment Project in JAVA with just a simple Servlet that create a Pipeline to execute in Google Dataflow each time the service is called, BUT I always got the same error deploying from Eclipse or Console. Anyone who knows why this error is occurring ? Please Help!I'm trying to deploy an App Engine Flexible Env