>svn up
Skipped '.'
>svn cleanup
'.' is not a working copy directory
>svn co https://192.168.0.52:8443/svn/CAR/IMX53_SDK/src/frameworks ./
分析:ubuntu机器上,原svn受控的frameworks目录被删掉了,必须重新checkout一遍,而不是update一遍。