Getting QT apps running.

[Dietmar Winkler]

Hi,

thanks.  That let me start the app ... almost. I'm now getting:

$ ipe
Qt: Session management error: None of the authentication protocols
specified are supported
QGtkStyle could not resolve GTK. Make sure you have installed the
proper libraries.
[string "require "main""]:1: module 'main' not found:
no field package.preload['main']
no file '../../../install/share/ipe/7.2.5/lua/main.lua'
no file '/usr/local/lib/lua/5.2/main.so'
no file '/usr/lib/x86_64-linux-gnu/lua/5.2/main.so'
no file '/usr/lib/lua/5.2/main.so'
no file '/usr/local/lib/lua/5.2/loadall.so'
no file './main.so'
stack traceback:
[C]: in function 'require'
[string "require "main""]:1: in main chunk



On 28 July 2016 at 20:21, Kyle Fazzari <kyle.fazzari at canonical.com> wrote:
> On 07/28/2016 11:05 AM, Dietmar Winkler wrote:
>> Hi,
>>
>> when trying to run this "ipe" qt app I got the error message:
>> $ ipe
>> This application failed to start because it could not find or load the
>> Qt platform plugin "xcb".
>>
>> I found out that I need to include the libqt5gui5 package as stage
>> package (just like in the hello-world-desktop example, But even though
>> I added it to my yaml file I still get the same error message.
>>
>> https://github.com/dietmarw/snaps/blob/master/ipe/snapcraft.yaml#L44
>> (I'm actually not sure if I really need the "after: [qt5conf]" part.)
>>
>> So what else am I missing?
>
> The problem is that your application isn't looking in the right place
> for the platform plugins. That's where the qt5conf part comes in handy--
> it includes a launcher script to set that environment for you.
>
> You need to use the launcher from the qt5conf part in order to launch
> the app.
>
> apps:
>   ipe:
>     command: bin/ipe
>
> Needs to be:
>
> apps:
>   ipe:
>     command: qt5-launch bin/ipe
>
> And so on.
>
> --
> Kyle Fazzari (kyrofa)
> Software Engineer
> Canonical Ltd.
> kyle at canonical.com
>
>
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>



-- 
Dietmar Winkler, Assistant professor
University College of Southeast Norway
Faculty of Technology
Campus: Porsgrunn

http://me.dwe.no

Kjølnes ring 56, 3918 Porsgrunn, Norway