How to update FSharp.Core for Visual Studio 2012 fsi

Question

I am trying to run a script in the fsi. I get the following error.

Could not load file or assembly 'FSharp.Core, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

I found the following references that suggest I may have to update the default FSharp.Core version somewhere inside Visual Studio, downloading the package with nuget is not enough.

I am not sure how to fix this and I am afraid to permanently damage the vs configuration.

nicolas nicolas · Accepted Answer · 2014-04-30T17:23:41

You can see where FSI is located by typing

System.AppDomain.CurrentDomain.BaseDirectory;;

In my computer I get

C:\Program Files (x86)\Microsoft SDKs\F#\3.1\Framework\v4.0\

And I have a file

Fsi.exe.config

which does the redirects.

You probably point to an old FSharp installation, as 4.3.0.0 and 4.3.1.0 should be binary compatible.

How to update FSharp.Core for Visual Studio 2012 fsi

1 Answers