Unable to use any unity version. Keep getting an error.

Unity Engine
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1

The issue is simply as mentioned in topic. Can not use any version of unity or any project. Keep getting this error message. I tried updating, repairing Visual studio and unity. But still no luck. Error code is below,

Library\PackageCache\com.unity.ide.visualstudio@2.0.11\Editor\VisualStudioIntegration.cs(30,18): error CS0246: The type or namespace name ‘Messager’ could not be found (are you missing a using directive or an assembly reference?)

Any help is appreciated.

2

What version of the .NET framework do you have installed?

3

I have installed .NET4.8
I tried

I have installed .NET 4.8

I downgraded Visual Studio Editor 2.0.11 package from package manager to version 2.0.9 Then the error issue was fixed. But I had to do this to all the unity projects I’m using. Even after I start a new one.

Now I installed unity 2021.2 and I’m still getting the same error. The biggest issue is now I can’t downgrade Visual Studio Editor 2.0.11 package from package manager. So there is no work around.

Any help is Highly appreciated.