when add cquery .netstandard see this error

[mgmehdiforme]

when add cquery .netstandard see this error
after add csquery to android project using nuget
Severity Code Description Project File Line Suppression State
Error CS1703 Multiple assemblies with equivalent identity have been imported: 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\IDE\ReferenceAssemblies\Microsoft\Framework\MonoAndroid\v1.0\mscorlib.dll' and 'C:\Users\saeed.nuget\packages\microsoft.netcore.portable.compatibility\1.0.1\ref\netstandard1.0\mscorlib.dll'. Remove one of the duplicate references. App4.Android C:\Users\saeed\source\repos\App4\App4\App4.Android\CSC 1 Active