Package tried to add reference to System.Runtime which was not found in the GAC

Question

ASP.NET 4.5.1 or 4.5.2

Updating Nuget package MicrosoftAspNet.Identity.EntityFramework from version 2.2.1 to version 3.0.0-rc1-final

I get the following erro

Answer 1

I had a similar issue with another package.

I "solved" it adding a manually reference to missed library, updating the package and then removing the reference added manually:

• On your project go to References -> Add Reference... and then click on Browse...

• On my installation (Windows 10), your file is located on: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Runtime\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.dll

Add, update and then remove.

I know, it is not a solution, but it will allow you continue working until get a real solution.

Answer 2

I had the same issue, but adding the MySQL package to my project.

The way that i solved was just very closely to the answer given by Sebastián Guerrero.

So i will be adding a manually reference to that missed library (system.runtime) and than installed the MySQL package and it works perfectly.

ATTENTION: I only unnistall the system.runtime package after installing the MySQL.

References -> Add Reference... and then click on Browse...

On my installation (Windows 10), your file is located on: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Runtime\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.dll

Answer 3

I had this problem when I opened the project after a while.

The problem was it was originally built with Microsoft.Net.Compilers.2.4.0 and I was on 3.3.1.

The project strangely added two required Imports to the .csproj file, one for the 2.4.0 compiler,and a duplicate for the 3.3.1 version. I just needed to:

• Right click on the project file
• Unload the project
• Edit the csproj file
• Remove the 2.4.0 references (was also a reference in an Error element)
• Close file
• Right click on project, reload file.
• Rebuild All

Answer 4

I had the same issue when running Install-Package Microsoft.Azure.Management.Fluent on .NET framework 4.5.2

Solved the issue with the following steps:

1. Installed Microsoft.Rest.ClientRuntime latest version from Nuget.
2. After that, installed latest version of Microsoft.Azure.Management.Fluent from Nuget.