Knowledge Base » [412990] Why am I getting a 'pure virtual function call' error?

Operating System: Windows 7, Windows XP, Windows Vista
Product or Service: StudyPlace, GatherPlace, TutorPlace
Client Software: GP4
In many cases, re-starting the computer and then re-opening GP4 will correct the error.

If the error still occurs after a re-start, the GP4 program will need to be uninstalled and re-installed.
Windows update must also be run prior to the re-install to make sure all of the system patches and upgrades are installed.

The website for Windows update is: http://windowsupdate.microsoft.com/

The host version of GP4 can be downloaded here: Host Download
The guest version of GP4 can be downloaded here: Guest Download
If after running Windows update and re-installing GP4, you still experience the pure virtual function call error, see this article for instructions on sending your System information file to GatherPlace so we can investigate the issue.

See Also