Why not able to load netstandard.dll when creating new window service with SignalR assembly?

Question

We had conversion feature in our application. Which feature refers core library which linked with netstandard.dll.
When we creating new window service by using SignalR and placing the library file in same bin folder, facing the below error.

Could not load file or assembly 'netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The system cannot find the file specified.

But, When placing newly created service library file into separate folder, there is no issue. Application is working as expected.

Answer 1

Hi @Thangachamy Maruthaiah ,
The netstandard.dll you are trying to load is a reference assembly that which cannot be loaded for runtime on .NET Framework as pointed out by others. However if you need to resolve that dependency you will need to runtime version that maps to the framework you are trying to run on.
More details,you could refer to below article:
https://stackoverflow.com/questions/45021965/could-not-load-file-or-assembly-netstandard-version-2-0-0-0-reference
Best regards,
Yijing Sun

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