I installed the KVM using command line and my web project in VS2015 preview broke not compiling, but if add a new web project all works fine, how do uninstall the KVM so I c
I believe your versions are out of sync. Check your project.json and make sure you are not using different versions. I found that when I had 1 dependency that used 3.0.0-* it upgraded to beta2 from beta1. All of my other dependencies had beta1 actually defined. (Ex: 1.0.0-beta1). If the beta2 assembly shares the same dependency as one of your assemblies using beta1 it will override the older version of the shared assembly that is being used and causes your older version to fail.