I use win10 eclipse access Ubuntu installed on a virtual machine pseudo hadoop2.6.0 appears the problem of distributed build,
An internal error occurred during: "Map/Reduce the location status updater".

Java. Lang. NullPointerException
At org, apache hadoop. Mapred. JobClient. GetAllJobs (JobClient. Java: 814)
At org, apache hadoop. Mapred. JobClient. JobsToComplete (JobClient. Java: 790)
At org, apache hadoop. Eclipse. Server HadoopServer $LocationStatusUpdater. Run (119) HadoopServer. Java:
The at org. Eclipse. Core. Internal. Jobs. The Worker. The run (53) Worker. Java:
And this problem
The command (" DFS. Browser. Action. Delete ") is undefined
The command (" DFS. Browser. Action. Reconnect ") is undefined
The command (DFS. Browser. Action. "refresh") is undefined
The command (" DFS. Browser. Action. Download ") is undefined