The workaround (until a better cache format is in place) is to install python-tdb. (if you're on Linux) or avoid running multiple bzr processes that use the same Subversion repository concurrently (if you're on Windows).
The workaround (until a better cache format is in place) is to install python-tdb. (if you're on Linux) or avoid running multiple bzr processes that use the same Subversion repository concurrently (if you're on Windows).