Visual-studio – AnkhSVN Upgrade causing problems: Working copy too old (format 10, created by Subversion 1.6)

If you look on the release notes for subversion 1.6 you will see the following

The working copy format has been upgraded. This means that 1.5 and older Subversion clients will not be able to work with working copies produced by Subversion 1.6. Working copies are upgraded automatically.

So if you use a 1.6 based client, no previous versions will work. On further reading of the release notes you should be able to downgrade your working copy if required...

WARNING: if a Subversion 1.6 client encounters a pre-1.6 working copy, it will automatically upgrade the working copy format as soon as it touches it, making it unreadable by older Subversion clients. If you are using several versions of Subversion on your machine, be careful about which version you use in which working copy, to avoid accidentally upgrading a working copy. (But note that this "auto upgrade" behavior does not occur with the repositories, only working copies.)

If you accidentally upgrade a 1.5 working copy to 1.6, and wish to downgrade back to 1.5, use the change-svn-wc-format.py script. See this FAQ entry for details, and run the script with the --help option for usage instructions.

Bear in mind that Subversive doesn't communicate with your working copy directly; it is only an interface for Eclipse. The communication runs through an SVN connector such as SVNKit or JavaHL. This is the software you should update to resolve your problem.

In my case I'm using SVNKit, which can be updated like so:

1. Make sure Eclipse's update sites are pointing to Polarion's recommendations. Here's what my update sites look like:
2. You'll need the latest version of Subversive SVN Connectors, so make sure the Subversive update site is enabled and let Eclipse check for updates through Help, Check for updates.
   • Check Eclipse's Installation Details to confirm that you've got Subversive SVN Connectors version 2.3.0.I20120413-1700 or later. To do so, go to Help, About, then click "Installation details".
   • If you haven't gotten a new version, you might need to uninstall the old one, and grab the new one from the Subversive update site.
3. Now you may update SVNKit. Select Help, Install new software to bring up the software installation window.
4. Select the latest SVNKit (as of this writing, 1.7.4) and install it.
5. Restart Eclipse.

If Subversive is using the wrong connector after restarting Eclipse, select the right newest one from the preferences screen (under Preferences, select Team, SVN then click the tab "SVN Connectors").