LxLon Stack Overflow • Recommends
On “Referencing between NetStandard and .Net Framework”
…code compiles fine without any errors.
Note : your code may fail if the Framework452.Library uses an API that is not supported by .NET Standard 1.2 (e.g Winforms, Win32 API or any Microsoft proprietary library that does not make sense for cross platform).
I recommend this youtube playlist on the .NET standard introduction from one of the MSFT link to this video
In link to this video , he recommended tools to help you find out what API is not supported……