无法在eclipse中读取项目描述文件

Question

我是android的新手。从SVN查看代码时，我遇到了这个问题：

     Checkout operation for 
    'https://subversion.assembla.com/svn/SamplePjt/trunk/Android/SamplePjtv1.0/SamplePjt' failed.
     Failed to read the project description file (.project) for 'SamplePjt'.  The file has been changed on disk, and it now contains invalid information.  The project will not function properly until the description file is restored to a valid state.

任何人都可以帮助我。