Error Message could not load file or assembly 'FSharp.Core'

The complete error message that I got is this.

Could not load file or assembly 'FSharp.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified

I got this error message when I was working with a workflow that was related to continue integration. After surfing the google I download the following tool and installed in my machine. After that I was able to work with the workflows again.

I was helped by the following article.

http://stackoverflow.com/questions/3042253/could-not-load-file-or-assembly-fsharp-core-version-4-0-0-0

F Sharp downloading URL

http://www.microsoft.com/download/en/confirmation.aspx?id=13450