Execution of F# code fails if only VS 2012 RC is installed

DmitryLobanov

I have only VS 2012 RC installed on my PC. When I try to run any F# code LINQPad fails with the error "Cannot locate C:\Program Files (x86)\Microsoft F#\v4.0\fsc.exe - is F# installed?".

Windows 7 x64, Visual Studio 2012 RC (there have not been any versions of VS previously installed except 2012 RC).

JoeAlbahari

Where is fsc.exe located on your machine?

DmitryLobanov

It's in C:\Program Files (x86)\Microsoft SDKs\F#\3.0\Framework\v4.0.

JoeAlbahari

Are you running the latest beta? LINQPad searches the folder you mention for fsc.exe. It will also recognize fsc.exe if it's in the same folder as LINQPad.exe:

static string GetFscPath ()
{
	string stem, path;

	path = Path.Combine (AppDomain.CurrentDomain.BaseDirectory, "fsc.exe");
	if (File.Exists (path)) return path;

#if V4
	// Look for F# 3.0 compiler:
	stem = @"Microsoft SDKs\F#\3.0\Framework\v4.0\fsc.exe";

	path = Path.Combine (PathHelper.ProgramFilesX86, stem);
	if (File.Exists (path)) return path;

	path = Path.Combine (PathHelper.ProgramFiles, stem);
	if (File.Exists (path)) return path;
#endif
	// Look for F# 2.0 compiler:
#if V4
	stem = @"Microsoft F#\v4.0\fsc.exe";
#else
	stem = @"FSharp-2.0.0.0\bin\fsc.exe";
#endif
	path = Path.Combine (PathHelper.ProgramFilesX86, stem);
	if (File.Exists (path)) return path;

	path = Path.Combine (PathHelper.ProgramFiles, stem);
	if (File.Exists (path)) return path;

	return null;			
}

DmitryLobanov

Oh, I've tried it on stable build, 4.42.1. Now I've downloaded beta (4.42.12) and it works well!

BTW the awkward error message when compiling F# script with errors has gone away too!

Thanks!