dotnet core : Can not find assembly file Microsoft.CSharp.dll : <p>I have a project that i have not run for some while, build with dotnet core 1.1.2 dependencies.</p>

<p>in the meanwhile I have updated visual studio, possible installed some dotnet core stuff for 2.0 and my application do not run anymore.</p>

<pre><code>InvalidOperationException: Can not find assembly file Microsoft.CSharp.dll at 'C:\dev\EarthML\EarthML.Mapify\src\EarthML.Mapify.Portal\bin\Debug\net462\win10-x64\refs,C:\dev\EarthML\EarthML.Mapify\src\EarthML.Mapify.Portal\bin\Debug\net462\win10-x64\'
Microsoft.Extensions.DependencyModel.Resolution.AppBaseCompilationAssemblyResolver.TryResolveAssemblyPaths(CompilationLibrary library, List&lt;string&gt; assemblies)
</code></pre>

<p>What would I do to start figuring out why it dont work?</p>
