I’ve been using VS 2022/Wisej and all has been well.
Now, I am receiving the error “Value cannot be null, Parameter name: instance” on ALL forms.
I’ve made no changes to any of the forms. VS 2022 made an update and I have reverted to the old one and still get this error on all forms. (I did reboot)
This can happen if nuget packages and vsix versions don’t match or the vsix is not properly installed.
1. Install the most recent VSIX from https://wisej.com/builds/
2. Right click on the solution -> Manage Nuget Packages Check that the nuget package you are using is the most recent one (currently 3.5.17)
3. Do a clean and rebuild of the project. Manually delete the obj and bin folders.
4. Restart Visual Studio
5. Restart your computer
Thank you Julie, that worked!! 🙂