App Engine Java部署错误：java.lang.NoSuchMethodError：com.google.common.reflect.TypeToken.isSubtypeOf

Question

We are getting following error on deploying on app engine server since last 4-5 days. Sometimes deployment works, but most of the time it gives following errors.

Log snippet 1:

Error for /_ah/api/agentEndPoint/v1/addLead
java.lang.NoSuchMethodError: com.google.common.reflect.TypeToken.isSubtypeOf(Ljava/lang/reflect/Type;)Z
    at com.google.api.server.spi.config.model.Types.getArrayItemType(Types.java:138)
    at com.google.api.server.spi.SystemService.registerService(SystemService.java:185)
    at com.google.api.server.spi.SystemService$Builder.build(SystemService.java:524)
    at com.google.api.server.spi.EndpointsServlet.createSystemService(EndpointsServlet.java:130)

Log snippet 2:

/_ah/api/taskEndPoint/v1/gettaskdetailresponse/TCB-16327
java.lang.NullPointerException
    at com.google.api.server.spi.EndpointsServlet.service(EndpointsServlet.java:71)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

Answer 1

Change in build.gradle

classpath 'com.google.cloud.tools:endpoints-framework-gradle-plugin:1.0.1'

changed to

classpath 'com.google.cloud.tools:endpoints-framework-gradle-plugin:1.0.2'

Worked for me.

Also extra gradle clean remove the error

https://github.com/GoogleCloudPlatform/endpoints-framework-gradle-plugin/blob/master/ANDROID_README.md