Svk 2.0.2

On svk version up, svk-win32 2.2.0 causes following errors at a computer of mine

Use of uninitialized value in concatenation (.) or string at
"Transaction is out of date:" svk sync

Under such condition, as svk cannot work well, new revision is added into dept whenever svl sync.
Then, I uninstalled 2.2.0 and have used svk 2.0.2 without problems.
Furthermore, the old version 2.0.0 causes access violation.