Payload contains two or more files with the same destination path 'System.Diagnostics.Tools.dll'

Question

After I add 2 libraries from Nuget to my project I receive follow error:

Error       Payload contains two or more files with the same destination path \'System.D         


        

Answer 1

You may try the following in VS2019

1. Update Microsoft.NETCore.UniversalWindowsPlatform using Tools-->Nuget Package Manager--> Manage Nuget Package for Solutions

2. Tools-->Nuget Package Manager--> Package Manager Settings-->Clear All Nuget Cache(s)

3. Delete the files under:

<package Name>\bin\x86\Release
<package Name>\bin\x64\Release
<package Name>\bin\Arm\Release

4. Build--> Clean Solution for each version, Release x86 etc

Finally worked for me. If this still fails, building a package using VS2017 may work.