Unsupported operand type (s)

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{\\ #!python\\ ** Mercurial version (2.2.2). TortoiseHg version (2.4.1)\\ ** Command: --nofork workbench\\ ** CWD: W:\4rrsi_dev\\ ** Encoding: cp1252\\ ** Extensions loaded:\\ ** Python version: 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)]\\ ** Windows version: (6, 1, 7601, 2, 'Service Pack 1')\\ ** Processor architecture: x86\\ ** Qt-4.7.4 PyQt-4.8.6\\ Traceback (most recent call last):\\ File "tortoisehg\hgqt\workbench.pyo", line 815, in forwarder\\ File "tortoisehg\hgqt\repowidget.pyo", line 1074, in push\\ File "tortoisehg\hgqt\sync.pyo", line 851, in push\\ File "tortoisehg\hgqt\sync.pyo", line 1099, in pushclicked\\ File "tortoisehg\hgqt\sync.pyo", line 774, in run\\ TypeError: unsupported operand type(s) for +: 'NoneType' and 'str' }

}}