MVC 5 Global asax Error: Failed to load type MVCProject.Global

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An error occured while parsing a resource required to fullfill this request. Please review the specific parsing error details below and modify your source accordingly.

Failed to load type MVCProject.Global.

I have a problem that I've been dealing with all day. I wanted to prepare an MVC 5 project with Visual Studio 2019, but I could not solve the error on the screen.