Problems with F# Interactive scripting on Linux (Alt-Enter/Ctrl-Enter execution)

[carsten-j]

When I am editing a FSX file in MonoDevelop and then want to execute some code in the F# interactive then I assume that I should put the cursor on the line in the FSX file that I want to execute and then press Alt-Enter.

This do not execute code in the interactive prompt. I experience either

1. nothing happens or from time to time
2. An error: System.InvalidOperationException: An item with id 'FSharp.MonoDevelop.FSharpInteractivePad' already exists.

Any suggestion to as what I do wrong?

The error details:

System.InvalidOperationException: An item with id 'FSharp.MonoDevelop.FSharpInteractivePad' already exists.
at MonoDevelop.Components.Docking.DockFrame.AddItem (System.String id) [0x00048] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Docking/DockFrame.cs:197
at MonoDevelop.Ide.Gui.DefaultWorkbench.AddPad (MonoDevelop.Ide.Codons.PadCodon padCodon, System.String placement, DockItemStatus defaultStatus) [0x00089] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/DefaultWorkbench.cs:1281
at MonoDevelop.Ide.Gui.DefaultWorkbench.AddPad (MonoDevelop.Ide.Codons.PadCodon content, Boolean show) [0x0004c] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/DefaultWorkbench.cs:483
at MonoDevelop.Ide.Gui.DefaultWorkbench.AddPad (MonoDevelop.Ide.Codons.PadCodon content) [0x00000] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/DefaultWorkbench.cs:453
at MonoDevelop.Ide.Gui.Workbench.AddPad (MonoDevelop.Ide.Codons.PadCodon content) [0x00000] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Workbench.cs:305
at MonoDevelop.Ide.Gui.Workbench.AddPad (IPadContent padContent, System.String id, System.String label, System.String defaultPlacement, IconId icon) [0x00000] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Workbench.cs:311
at MonoDevelop.FSharp.FSharpInteractivePad.get_CurrentPad () [0x00000] in :0
at MonoDevelop.FSharp.SendSelection.Update (MonoDevelop.Components.Commands.CommandInfo info) [0x00000] in :0
at MonoDevelop.Components.Commands.CommandHandler.InternalUpdate (MonoDevelop.Components.Commands.CommandInfo info) [0x00000] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandHandler.cs:47
at MonoDevelop.Components.Commands.CommandManager.DefaultUpdateCommandInfo (MonoDevelop.Components.Commands.ActionCommand cmd, MonoDevelop.Components.Commands.CommandInfo info) [0x00079] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandManager.cs:1257
at MonoDevelop.Components.Commands.CommandManager.GetCommandInfo (System.Object commandId, MonoDevelop.Components.Commands.CommandTargetRoute targetRoute) [0x001a9] in /Users/builder/data/lanes/monodevelop-lion-monodevelop-3.1-series/5d928ec4/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandManager.cs:1223

[rsriniva]

This is how I worked around this issue on Linux/MD 3.0.6. Edit the file ~/.local/share/MonoDevelop-3.0/LocalInstall/Addins/MonoDevelop.FSharpBinding.3.2.12/FSharpBinding.monodevelop-3.0.6.addin.xml

Comment out the last Extension as below

<Extension path = "/MonoDevelop/Ide/MainMenu/Edit">
    <CommandItem id = "MonoDevelop.FSharp.FSharpCommands.SendSelection" />
    <CommandItem id = "MonoDevelop.FSharp.FSharpCommands.SendLine" />
 </Extension>

Then restart MD. Go to View -> Pads -> F# interactive. Enjoy REPL!

[7sharp9]

I have always highlighted multiple lines and just sent that to the command line...

[carsten-j]

Thanks for the input. However changing the xml file does not solve the problem. I am afraid that I will have to go back to Windows and Visual Studio. Otherwise I will not get any work done :-(

[7sharp9]

I never use fsx files or the send to function. Its shift cmd L on the Mac incidentally. Hopefully someone will take a look at the issue at some point. With the last build I seem to have the F# interactive pad installed twice...

[rsriniva]

With the last build I seem to have the F# interactive pad installed twice...

I am seeing the same issue on Linux MD 3.0.6, Mono 3.0.3 and latest FS binding added from Addin Manager

[funnelweb]

I don't get this error on XamarinStudio 4.0 on Mac

[funnelweb]

The key combination has been changed to Ctrl-Enter on Xamarin Studio 4.0

[7sharp9]

Seems to work fine as CTRL ENTER, can this be closed now?

[funnelweb]

yes