Could not load file or assembly 'System.IdentityModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies

Question

I am new to mvc. I just installed the Visual studio 15 and when i create a mvc project and run it without any modification. it gives me the above mentioned error. I did the same

Answer 1

"Could not load file or assembly 'AAAAAAAAAA, Version=6.0.0.0, Culture=neutral, PublicKeyToken=xxxxxxxxxx' or one of its dependencies." is a common error. Try the following methods in order to fix this error:

Method I: Add the following key to the section in your web.config:

<compilation debug="true" targetFramework="4.5" >    
    <assemblies>
      <add assembly="AAAAAAAAAA, Version=4.0.0.0, 
          Culture=neutral, PublicKeyToken=xxxxxxxxxx" />
    </assemblies>
</compilation> 

Method II: If the problem is not solved, try to run this command on PM Console:

Install-Package AAAAAAAAAA

Hope this helps...