Re: [Vala] Help: Classes cannot have multiple base classes

[Frank Chiu <techium icloud com>]

Hi Abderrahim,

Thank you so much!  That did it!

Changing the compile command from:

        valac --pkg gtk-3.0 --pkg gdk-3.0 test.vala

to:

        valac --pkg gtk+-3.0 --pkg gdk-3.0 test.vala

worked.

Could you elaborate a little on, or give a link to, how I can find the pkg-config name of a package, and 
what’s the difference between that and the gir name?

And is there an easier way to specify packages than listing them one by one in the command?

I’m *very* new to Vala.

Thanks again!
Frank C.


> On 2019-10-13, at 10:32 PM, Abderrahim Kitouni <a kitouni gmail com> wrote:
>
> Hi,
>
> Le dim. 13 oct. 2019 à 04:02, Frank Chiu via vala-list <vala-list gnome org> a écrit :
> Greetings fellows,
>
> I installed Vala and GTK on macOS Sierra (via Homebrew) and tried compiling a sample GTK program.  But I 
> got tons of errors similar to the one below.
>
> I’m new to Vala and I'd really appreciate any pointers, thanks!
>
> It would be nice to post the exact command line you're using. However, if I were to guess, you should use 
> the pkg-config name of the package rather than the gir name (in this case gtk+-3.0 instead of Gtk-3.0)
>
> HTH,
>
> Abderrahim