MissingAnalyzerReference Analyzer assembly 'packages\StyleCop.Analyzers.1.0.0-beta009\analyzers\dotnet\cs\Newtonsoft.Json.dll' depends on 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' but it was not found. Analyzers may not run correctly
I'm getting this warning: