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Could not load file or assembly 'System.Buffers, Version=4.0.2.0...'

I'm getting the following exception when trying to call GetDatabase method of the MongoClient class after adding a new configuration using VS config. manager:

Could not load file or assembly 'System.Buffers, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

I installed the latest System.Buffer nuget package v4.5.1, created dependentAssembly in my app.config and Reference in my .csproj file, but I still have the same issue. For some reason, it tries to reference System.Buffer with v4.0.2. Has anyone had a similar error and how did you solve it?

Solution

  • Could not load file or assembly 'System.Buffers, Version=4.0.2.0…'

    Solution

    1) use CMD(run as Administrator ) and type

     cd xxxx(xxxx\packages\System.Buffers.4.5.1\lib\netstandard2.0))

    run

    gacutil /i System.Buffers.dll

    Then, when you finish it, please run update-package -reinstall under package manager console to reinstall the package.

    2) you can try to change Version=4.0.2.0 to Version=4.0.3.0 in csproj file.

    Besides, there is a similar issue you can refer to.