FSI.exe does not work under Ubuntu 10.10

Question

Update: Tried November CTP release. Same error message. Forgot to mention that this server has the Ubuntu server edition installed. I don\'t have this issue on my Ubuntu

Answer 1

F# has never worked for me under Linux. Today with Mono 2.8 and the November 2010 drop of F# (which confusingly has the exact same version number as the previous release?!) I get:

$ sudo ./install-mono.sh
In order to add FSharp.Core.dll to the Mono GAC the DLL needs to be
re-signed with the mono.snk key. The mono.snk key is available from
the 'Mono Sources'.

  http://www.mono-project.com/
  http://github.com/mono/mono/raw/master/mcs/class/mono.snk

For example, run:
  wget -O mono.snk http://github.com/mono/mono/raw/master/mcs/class/mono.snk

Then re-run this script.

An alternative to installing the DLLs in the Mono GAC is to add the
FSharp bin directory to the MONO_PATH variable. For more information
on 'How Mono Finds Assemblies' see http://www.mono-project.com/Gacutil

If I run the wget command that it suggests then it dies:

$ wget -O mono.snk http://github.com/mono/mono/raw/master/mcs/class/mono.snk
--2010-11-23 17:02:43--  http://github.com/mono/mono/raw/master/mcs/class/mono.snk
Resolving github.com... 207.97.227.239
Connecting to github.com|207.97.227.239|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://github.com/mono/mono/raw/master/mcs/class/mono.snk [following]
--2010-11-23 17:02:44--  https://github.com/mono/mono/raw/master/mcs/class/mono.snk
Connecting to github.com|207.97.227.239|:443... connected.
ERROR: certificate common name `*.github.com' doesn't match requested host name `github.com'.
To connect to github.com insecurely, use `--no-check-certificate'.
Unable to establish SSL connection.

Now if I rerun the F# installer I get a different error:

$ sudo ./install-mono.sh
-- Resigning FSharp.Core.dll with mono.snk
ERROR: Invalid number of parameters.

Usage: sn [-q | -quiet] options [parameters]

 -q | -quiet            Quiet mode (minimal display)

Help options
 -? | -h                Show this help screen about the tool
 -? | -h config         Configuration options
 -? | -h csp            Crypto Service Provider (CSP) related options
 -? | -h convert        Format convertion options
 -? | -h sn             StrongName signing options
-- Installing FSharp DLLS into the GAC
Failure adding assembly bin/FSharp.Core.dll to the cache: Strong name cannot be verified for delay-signed assembly

If I copy the mono.snk file from the Mono 2.8 directory into the F# directory by hand then the installer seems to work:

$ sudo ./install-mono.sh
-- Resigning FSharp.Core.dll with mono.snk
Assembly bin/FSharp.Core.dll signed.
-- Installing FSharp DLLS into the GAC
Installed bin/FSharp.Core.dll into the gac (/usr/local/lib/mono/gac)

But F# itself still fails to work in exactly the same way that it did before (appearing to hang whenever input is entered):

$ mono bin/fsi.exe

Microsoft (R) F# 2.0 Interactive build 2.0.0.0
Copyright (c) Microsoft Corporation. All Rights Reserved.

For help type #help;;

> 1+2*3;;

I have to use CTRL+Z to regain control and then kill %1 to kill the rogue process.