I was able to work around this. I tried the upgrade several times and noticed it was always failing in the same place. I deleted the subdirectory tree one level above that from my local copy and the upgrade was successful. The subsequent SVN Update had no problems. Unfortunately, I couldn't isolate the problem to a single file or file type, so can't help you with that. Luckily it was a subdirectory where I didn't have any locked or non-committed files.
From: Ayden Young Sent: Thursday, October 27, 2011 8:03 AM To: 'dev@subversion.apache.org'; 'us...@subversion.apache.org' Subject: Working Copy Upgrade Error On Windows 7 Enterprise. --------------------------- Subversion Exception! --------------------------- Subversion encountered a serious problem. Please take the time to report this on the Subversion mailing list with as much information as possible about what you were trying to do. But please first search the mailing list archives for the error message to avoid reporting the same problem repeatedly. You can find the mailing list archives at http://subversion.apache.org/mailing-lists.html Subversion reported the following (you can copy the content of this dialog to the clipboard using Ctrl-C): In file 'D:\Development\SVN\Releases\TortoiseSVN-1.7.1\ext\subversion\subversion \libsvn_wc\util.c' line 300: assertion failed (svn_uri_is_canonical(repos_url, pool) && svn_relpath_is_canonical(path_in_repos) && SVN_IS_VALID_REVNUM(peg_rev)) --------------------------- OK --------------------------- Ayden Young I Program Manager I Trimble Hosting Services Office: +1-480-940-6583 I Mobile: +1-480-209-4370