intellij idea 12 svn problem

hi i am so new to subversion and intellij. I just read "http://www.jetbrains.com/idea/webhelp/using-subversion-integration.html#h2subversion_support" but it doesnt show step by step how to create a working copy. My question is How can i create a working copy.

First i created a repository. Then while checking out from repository it gives "Cannot checkout from svn: svn: E200030: Invalid expression" error. Am i doing something wrong?

Edit: Intellij idea Event Log shows: "Root 'myProject2' is likely to be of unsupported Subversion format"

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