Could not install package 'Microsoft.Owin.Security 2.0.1'

Question

Could not install package 'Microsoft.Owin.Security 2.0.1'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.0', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.

what i should i have to now...?

thanks in advance..

Answer 1

This means they created a nuget package that only contains assemblies targeted at other framework versions, for example Framework 4.5

If your project needs to stay on Framework 4.0 you can try to use a previous version of the package by using the nuget package manager console and issue the following command:

Install-Package Microsoft.Owin.Security -Version X.X.X

Where X.X.X is a previous version number.

You can find the version history here :

http://www.nuget.org/packages/Microsoft.Owin.Security

Or you can use Visual Studio 2012/2013 and create a project that targets Framework 4.5, then you will not get this error.