Google app engine 部署到google appengine时出现内部错误
我正在尝试让Vaadin7应用程序在谷歌应用程序引擎上运行。我在EclipseJuno中使用AppEngineSDK1.8.5 自从我得到以下信息后,部署似乎开始工作:Google app engine 部署到google appengine时出现内部错误,google-app-engine,Google App Engine,我正在尝试让Vaadin7应用程序在谷歌应用程序引擎上运行。我在EclipseJuno中使用AppEngineSDK1.8.5 自从我得到以下信息后,部署似乎开始工作: ------------ Deploying frontend ------------ Preparing to deploy: Created staging directory at: '/tmp/appcfg4530509922106401908.tmp' Scanning for jsp files.
------------ Deploying frontend ------------
Preparing to deploy:
Created staging directory at: '/tmp/appcfg4530509922106401908.tmp'
Scanning for jsp files.
Scanning files on local disk.
Initiating update.
Cloning 4 static files.
Cloning 8 application files.
Deploying:
Uploading 0 files.
Initializing precompilation...
Deploying new version.
Verifying availability:
Will check again in 1 seconds.
Will check again in 2 seconds.
Will check again in 4 seconds.
Will check again in 8 seconds.
Closing update: new version is ready to start serving.
Updating datastore:
Uploading index definitions.
Deployment completed successfully
但是,在操作结束时,会弹出一条消息:
An internal error occurred during: "Deploying <app-name> to Google".
java.lang.NullPointerException
在“部署到Google”期间发生内部错误。
java.lang.NullPointerException
日志文件中没有写入任何内容,我也不知道这是什么类型的空指针。从web浏览器访问应用程序会得到HTTP 500。
关于原因/可能解决方案的任何提示?通常,在成功部署后,Google App Engine Eclipse插件会启动一个浏览器选项卡,指向您的应用id.appspot.com。如果失败,您可以得到一个NullPointerException,如您所述 至少在Eclipse4.3(开普勒)和AppEngineSDK1.8.6中,这就是发生在我身上的事情 在这种情况下,您的后端确实已部署,可以安全地忽略此错误。但是,您必须手动启动或刷新浏览器选项卡