按照云栖社区阿里云机器学习PAI的教程，cirfar-10运行的时候报错

按照云栖社区阿里云机器学习PAI的教程，cirfar-10运行的时候报错
[1] Instance 20170802095149665gx3tpok2 Failed.
[1] FAILED: Failed 20170802175212e0f7b72a_7c71_4f07_95c7_266503427b5b:ODPS-1202005:Algo Job Failed-System Error-System Error- error extract userScript: train.tar.gz
DMS logs: Please try the following steps:1. Read the error messages carefully to see if you can understand it;2. try to rerun the job first;3. Check the F&Q ( https://help.aliyun.com/document_detail/30352.html );