CFX-Pre or CFX-Post fail to start with an error similar to the following:


Aborting due to unexpected error:
comm::error: AppWindow::initialize - Error waiting for viewer connection from engine:


Please report this error, along with the circumstances in which it occurred.

The following information may be useful to CFX support:

Unexpected error: Aborting due to unexpected error:
comm::error: AppWindow::initialize - Error waiting for viewer connection from engine:
The error occurred at the following location:
00810bd2 libCUEGuiApplication ConfigStoreBase::ConfigStoreBase + 0x3c2 (no file)
39d5a17b qt-mt334 QObject::activate_signal + 0xc6 (no file)
39f5150c qt-mt334 QButton::clicked + 0x16 (no file)
39d2c2f7 qt-mt334 QApplication::internalNotify + 0x125 (no file)
39d2bd9c qt-mt334 QApplication::notify + 0x1f3 (no file)
39d081ec qt-mt334 QApplication::sendSpontaneousEvent + 0x20 (no file)
39d03b15 qt-mt334 QApplication::winFocus + 0x4b1 (no file)
7e418734 USER32 GetDC + 0x6d (no file)
7e418816 USER32 GetDC + 0x14f (no file)
7e4189cd USER32 GetWindowLongW + 0x127 (no file)
7e418a10 USER32 DispatchMessageW + 0xf (no file)
39d0d7ed qt-mt334 QEventLoop::processEvents + 0x1c9 (no file)
39d3548a qt-mt334 QEventLoop::enterLoop + 0x34 (no file)
0086753c libCUEGuiApplication cue::QTApplication::unexpectedError + 0x1ec (no file)
008672ec libCUEGuiApplication cue::QTApplication::exec + 0x5c (no file)
7c816fd7 kernel32 RegisterWaitForInputIdle + 0x49 (no file)



Note the error may vary, but always includes "ConfigStoreBase" somewhere in the message. This error is usually caused by a corrupt preferences folder. Deleting the folder:

C:Documents and Settings<User Name>.cfx

usually fixes the problem.





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