Designer error while opening a form

Question

This project ran well on a different computer, I copied everything as is, the application builds fine and runs fine, but the form designer throws this weird clue less error, on any form. I Cleaned solution, I removed Debug and Obj folders and rebuilt. but in vain. Any help is appreciated.

Answer 1

Hi @Proton,

Please first try to run Visual Studio as administrator, see if this issue disappears.

If the issue persists, try following:

1. Close VS, remove(manually) the hidden .vs folder in your solution folder and then rebuild your project.
2. In VS, right-click your solution, select Restore NuGet Packages option to restore the NuGet packages, check if this works.
3. Close VS, rename the "C:\Users\username\AppData\Local\Microsoft\VisualStudio\1x.0_xxxxxxxxxxxx\ComponentModelCache" folder from "ComponentModelCache" to "ComponentModelCache_backup". Open Developer Command Prompt for VS 2022, run devenv /ResetSettings command to reset VS settings.

Feel free to let us know the results.

Best regards,

Tianyu

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