How to resolve Error NU1107 Version conflict detected for Microsoft.CodeAnalysis.Common?

Question

-> I am getting this error as follows. NU1107 Version conflict detected for Microsoft.CodeAnalysis.Common. Install/reference Microsoft.CodeAnalysis.Common 3.8.0 directly to project Nexgen.Web to resolve this issue.

->I tried adding the dependency, the error is still persisting

->Neither this project nor other project in solution is using Microsoft.CodeAnalysis.Common.

Answer 1

Hi @Pooja Kesarkar,

In fact, there is also this interdependence between Nuget packages. You are getting this error because you are installing ReportViewerCore.NETCore.

As you can see in the NuGet Package Manager, ReportViewerCore.NETCore needs to depend on Microsoft.CodeAnalysis.VisualBasic(>=3.6.0):

And Microsoft.CodeAnalysis.VisualBasic needs to depend on Microsoft.CodeAnalysis.Common:

As for why it is recommended that you install version 3.8.0 directly, because this version solves the dependency problem of Microsoft.CodeAnalysis.VisualBasic, you do not need to install Microsoft.CodeAnalysis.VisualBasic:

In fact, under your error message, it tells you some dependencies of the NuGet package you use, you may not notice:

The final flow points to you needing to install the Microsoft.CodeAnalysis.Common NuGet package. Install Microsoft.CodeAnalysis.Common 3.8.0 first, then ReportViewerCore.NETCore, as per the NuGet package shown in your screenshot, your error should disappear.

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Best Regards,

Chen Li