Thank you for contacting us.
It seems that this error is due to installation issue rather than application. Could you please try the following steps:
- Uninstall the previous version of WPF Demos application
- Ensure that the folder C:\Users\xxx\AppData\Local\Apps\2.0\6GNG0VC5.4GG\1N029QJT.QB9\wpfd..tion_1d... is empty (if still exist).
- Reinstall the demos application.
Let us know if you need further assistance.
the Telerik team
Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get it now >>