It has been reported that TestComplete versions 15.77 and later, which introduce the Python 3.13 runtime, may encounter issues during upgrade where existing Python module imports no longer function correctly.
At this time, the most reliable options are either to downgrade to version 15.76 (Python 3.11) or to perform a clean installation of version 15.78 using the following steps:
- Reboot the system and log in with administrator privileges.
- Uninstall TestComplete and confirm that the installation directory has been completely removed.
- Install TestComplete 15.78 and verify that the Python directory (Python313\Lib\site-packages) is properly populated.
- Re-import or reinstall any required Python packages.
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