After upgrading to version 2.0.22(Development), the designer is showing : “value cannot be null : parameter name instance”
Reversing to 2.0.13 solves the problem.
I had the same error. Until now we didn’t have to reference Wisej.Framework.Design in our projects. After adding this dll to the references, I got a different error in the designer when opening a form: Cannot load Wisej.Framework.Design or one of its dependencies. Reopening Visual Studio solved this error.
Create a new project
“Value can not be null: parameter name instance” is
You will see the design.
Screen when creating a new project as a supplement
I will attach it.
Did you try removing and readding the Wisej.Framework and Wisej.Framework.Design dlls and rebuilding your solution? After that try completely closing out of Visual Studio and reopening it. If it still doesn’t work after trying these things please let me know!
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