[MonoDevelop] Can't Run/Debug. Huh?

Manish Sinha mail at manishsinha.net
Tue Sep 28 14:51:17 EDT 2010

On Tuesday 28 September 2010 12:56 AM, Tess Snider wrote:
> A friend of mine installed MonoDevelop on his Mac, and no matter what
> project he loaded (even the simplest Hello World application),
> MonoDevelop does not provide the ability to Run or Debug the app, even
> though it builds fine.  These options are greyed-out in the menu, and
> hotkeys don't do anything, either.  At the time, I showed him how it
> was working fine on my Windows machine.
> However, last week, I loaded up one of my MonoDevelop projects on my
> Windows machine, and I was having the SAME PROBLEM.  I thought maybe
> my project settings had become messed-up, so I -- again -- tried a
> minimalist Hello World app -- and no matter what I did, I could not
> get back my Run/Debug, in spite of the applications building fine.  My
> Debugger AddIn is still right where it should be, and everything else
> seems to be in order, so I'm stumped.
> Is this a common problem?  Does anyone have any advice for troubleshooting this?

I am not very much sure about your cause, but it might be the case that
the debugger is not installed or the debugger plugin is not

On Debian/Ubuntu, Monodevelop GNU debugger and Debugger plug-in is not
installed by default if you select monodevelop from the package manager.

monodevelop shows monodevelop-debugger-gdb and monodevelop-debugger-mdb
as recommends instead of depends.

In case it is installed on a Mac version, then goto Tools>Addin-manager
and expand the Debugging section. Make sure you have the necessary
addins enabled.


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