I tried to update source code coming from Subversion using TortoiseSVN but got an error. I had tried to update from a folder below the root (the “Implementation” folder in this case).
Error Working copy ‘C:\source\<project name>\Implementation’ locked. Error 'C:\source\<project name>' is already locked.
Trying the TortoiseSVN > Release Lock... command did nothing in this case because I had not taken a lock out on any file. The solution was to use TortoiseSVN > Cleanup... from the root folder (‘C:\source\<project name>’ in this case.