迁移到Google Cloud Endpoints Framework for Java

我有一个现有的基于Gradle的多模块Google App Engine（GAE）项目，该项目最初来自https://github.com/GoogleCloudPlatform/appengine-modules-sample-java .

该项目具有App Engine的Cloud Endpoints，我正在将其迁移到 Cloud Endpoints Framework （"cloud endpoints version 2"） . 我跟着https://cloud.google.com/endpoints/docs/frameworks/java/required_files，这意味着我改变了这些：

build.gradle

+       compile 'com.google.endpoints:endpoints-framework-auth:1.0.0-beta.10'
+       compile 'com.google.endpoints:endpoints-management-control-appengine:1.0.0-beta.10'

appengine-web.xml

+       <env-variables>
+               <env-var name="ENDPOINTS_SERVICE_NAME" value="myproject.appspot.com" />
+       </env-variables>

web.xml

+       <!-- Endpoints service config from service management -->
+       <filter>
+               <filter-name>endpoints-api-configuration</filter-name>
+               <filter-class>com.google.api.control.ServiceManagementConfigFilter</filter-class>
+       </filter>
+       <filter-mapping>
+               <filter-name>endpoints-api-configuration</filter-name>
+               <servlet-name>api</servlet-name>
+       </filter-mapping>
+
+       <!-- Endpoints logging and monitoring -->
+       <filter>
+               <filter-name>endpoints-api-controller</filter-name>
+               <filter-class>com.google.api.control.extensions.appengine.GoogleAppEngineControlFilter</filter-class>
+               <init-param>
+                       <param-name>endpoints.projectId</param-name>
+                       <param-value>myproject</param-value>
+               </init-param>
+               <init-param>
+                       <param-name>endpoints.serviceName</param-name>
+                       <param-value>myproject.appspot.com</param-value>
+               </init-param>
+       </filter>
+       <filter-mapping>
+               <filter-name>endpoints-api-controller</filter-name>
+               <servlet-name>api</servlet-name>
+       </filter-mapping>

（我已经完成了https://cloud.google.com/appengine/docs/java/endpoints/migrating中的部分，我将不在这里讨论）

但是当我尝试使用“gradle appengineRun”运行它时遇到此错误：

Oct 24, 2016 8:53:12 AM com.google.appengine.tools.development.SystemPropertiesManager setSystemProperties
    INFO: Overwriting system property key 'java.util.logging.config.file', value '/Users/username/.gradle/appengine-sdk/appengine-java-sdk-1.9.42/config/sdk/logging.properties' with value 'WEB-INF/logging.properties' from '/Users/username/Documents/code/myproject/web/ear/build/exploded-app/default-1.0/WEB-INF/appengine-web.xml'
    Oct 24, 2016 8:53:12 AM com.google.appengine.tools.development.DevAppServerImpl <init>
    INFO: Ignoring application.xml context-root element, for details see https://developers.google.com/appengine/docs/java/modules/#config
    com.google.appengine.tools.development.EnvironmentVariableChecker$IncorrectEnvironmentVariableException: One or more environment variables have been configured in appengine-web.xml that have missing or different values in your local environment. We recommend you use system properties instead, but if you are interacting with legacy code that requires specific environment variables to have specific values, please set these environment variables in your environment before running.
    [Mismatch environmentVariableName=ENDPOINTS_SERVICE_NAME environmentVariableValue=null appEngineWebXmlValue=myproject.appspot.com appEngineWebXmlFile=/Users/username/Documents/code/myproject/web/ear/build/exploded-app/default-1.0/WEB-INF/appengine-web.xml]
            at com.google.appengine.tools.development.EnvironmentVariableChecker.check(EnvironmentVariableChecker.java:75)
            at com.google.appengine.tools.development.ApplicationConfigurationManager.checkEnvironmentVariables(ApplicationConfigurationManager.java:240)
            at com.google.appengine.tools.development.ApplicationConfigurationManager.access$000(ApplicationConfigurationManager.java:32)
            at com.google.appengine.tools.development.ApplicationConfigurationManager$EarModuleConfigurationHandle.checkEnvironmentVariables(ApplicationConfigurationManager.java:486)
            at com.google.appengine.tools.development.JettyContainerService.connectContainer(JettyContainerService.java:213)
            at com.google.appengine.tools.development.AbstractContainerService.createConnection(AbstractContainerService.java:269)
            at com.google.appengine.tools.development.AbstractInstanceHolder.createConnection(AbstractInstanceHolder.java:37)
            at com.google.appengine.tools.development.AbstractModule.createConnection(AbstractModule.java:73)
            at com.google.appengine.tools.development.Modules.createConnections(Modules.java:99)
            at com.google.appengine.tools.development.DevAppServerImpl.doStart(DevAppServerImpl.java:239)
            at com.google.appengine.tools.development.DevAppServerImpl.access$000(DevAppServerImpl.java:45)
            at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:217)
            at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:215)
            at java.security.AccessController.doPrivileged(Native Method)
            at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:215)
            at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:277)
            at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
            at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:225)
            at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:216)

我该如何解决？