Resolved MonoBehavior not recognized in Visual Studio

Hi, I updated yesterday unity from 2020.3.8f1 LTS to 2020.3.9f1 LTS.

Today on editing a script in Visual Studio 2019, I have uncounted that nearly everything is marked as error
beginning from MonoBehavior could not be recognized, nearly everything is not recognized.

yesterday prior update everything was fine.

The scripts are working however in the unity Editor, the errors are only in VS2019

 

This may help you with intellisense and possibly other Visual Studio integration problems:

https://forum.unity.com/threads/intellisense-not-working-with-visual-studio-fix.836599/

Also, try update the VSCode package inside of Unity: Window -> Package Manager -> Search for Visual Studio Code Editor -> Press the Update button

Also, this: https://forum.unity.com/threads/no-suggestions-in-vscode.955197/#post-6227874

 

Re-importing the package helped.. thank you very much