I use STS for working with SVN. When I try upgrade (version 1.6) I received this error:
org.apache.subversion.javahl.ClientException: Invalid operation on the current working directory
svn: Can't upgrade 'C:\..... as it is not a pre-1.7 working copy directory
Can't find an entry svn: Missing default entry But is sure that missed - I have add new folder. How it can be resolved? Thanks.
You try to upgrade already 1.7 (WC-NG) working copy. But upgrade needed only once for 1.6 WC
I know this question is quite old, but for people who stumble upon it like I did and are still having problems, there is one gotchya that you should be aware of: This command will fail if not run from the working copy root. In my case, I was in a sub-folder and received the error message:
svn: E155019: Can't upgrade '<path_to_sub_folder>' as it is not a pre-1.7 working copy root, the root is '<my_working_copy_root>'
Simply change to the working copy root and issue the previously mentioned
svn upgrade
All should be well, then.
Carefully read the error message, for within it is contained the name of a sub-folder in your working copy that has not been upgraded for 1.7 usage. Henceforth, upgrade that specific folder:
svn upgrade ./[folder name]
(or whatever command your SVN client uses)
Probably upgrading you project to 1.7 didn't work.. there you'll be in big trouble since svn1.7 won't handle 1.6 projects (incredible but true oO)
Please try the following commands from command line
cd <working copy>
svn upgrade
Your internal working copy does not comply with 1.7 version
来源：https://stackoverflow.com/questions/7992137/svn-how-upgrade-working-copy