Visual Studio- Illegal characters in path

Question

This happen after Visual Studio Community 2017 latest update. Every time I try to open my project I get following warning:

Warning IDE0006 Error e

Answer 1

In your case the problem is the line returns in the following reference:

      
      ..\..\packages\System.Collections.Immutable.1.3.1\lib\portable-net45+win8+wp8+wpa81\System.Collections.Immutable.dll
      

Change this to:

 
      ..\..\packages\System.Collections.Immutable.1.3.1\lib\portable-net45+win8+wp8+wpa81\System.Collections.Immutable.dll