Go To Definition Using Language Server Protocol throws System.IO.FileNotFoundException HResult=0x80070002 Message=Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its

Shilpalakshmi Mithur 0 Reputation points
2023-12-08T03:59:37.2433333+00:00

Hi , i am developing VS extension using Language Server protocol for custom language .And i am referring https://github.com/tgjones/HlslTools/tree/master for developing. But when i click Go To definition i am getting error 

System.IO.FileNotFoundException
  HResult=0x80070002
  Message=Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
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Visual Studio Extensions
Visual Studio Extensions
Visual Studio: A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.Extensions: A program or program module that adds functionality to or extends the effectiveness of a program.
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  1. Anna Xiu-MSFT 27,636 Reputation points Microsoft Vendor
    2023-12-08T10:15:36.0833333+00:00

    Hi @Shilpalakshmi Mithur , 

    Welcome to Microsoft Q&A! 

    Are you using VS2019 or VS2022? Please update it to the latest version. 

    From the error message, it may be caused by missing the NuGet package Microsoft.CodeAnalysis or its dependencies. 

    Please ensure that the version of the referenced ‘Microsoft.CodeAnalysis’ package is 4.1.0.  

    Or you can try to reinstall the NuGet package with version 4.1.0.

    Sincerely,

    Anna

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