An error message on opening the Master Data Manager website

Problem:

Oops, got the following when opening the Master Data Manager website.


Reason: 

This error can occur when there are multiple versions of the .NET Framework on the computer that is running IIS, and IIS was installed after .NET Framework 4.0 or before the Service Model in Windows Communication Foundation was registered.

Solution - To register the correct version of ASP.NET
  1. Open a command prompt as an administrator as follows:
    1. From the Start menu, choose All Programs, and then choose Accessories.
    2. Right-click Command Prompt, and then choose Run as administrator.
  2. At the command prompt, type the following command to change to the Microsoft.NET\Framework64\v4.0.30319 folder, and then press Enter.

    cd \Windows\Microsoft.NET\Framework64\v4.0.30319
  3. At the command prompt, type the following command, and then press Enter.

    aspnet_regiis.exe -iru


    

    

    

    

    4. 

  4. At the command prompt, type the following command, and then press Enter.
    

    

    

    

    

    

    

    

    

    

    iisreset
    

    

    

    

    5.