tortoise svn cant open file the handle is invalid

When i am trying to use tortoisesvn on windows to do an update, i keep getting the following errors for a specific folder.

Can someone please let me know how to fix this problem and how it occurred?

Can't open file 
'C:\Users\myname\Documents\projects\cpe\lab\.svn\tmp\text-开发者_开发技巧base\con.svn-base': 
The handle is invalid.

Thanks

andyl from svnforum.com

con is an illegal filename in Windows. Rename the file via Repo Browser to conform to MS's rules.

msdn.microsoft.com

This fixed the issue.