[yocto] Qt5 xcb platform plugin missing

[Fabian Schwartau]

I solved this problem my own: The package qtbase-plugins has to be added 
to the image to install the plugins.
I also had to add the package qtmultimedia-plugins to install gstreamer 
plugins and add the line
PACKAGECONFIG_append_pn-qtmultimedia = " gstreamer010 "
to my local.conf to add gstreamer support in qtmultimedia.
Is there a meta package to automatically include all this qt stuff? I 
don't care if the image gets 100MB larger.

Fabian

Am 30.11.2014 um 12:49 schrieb Fabian Schwartau:
> Hi everyone,
>
> I am trying to build an application using Qt5 Multimedia (playing a
> video). Yocto is latest 1.6. Qt and my application compile just fine but
> when I run the application I get this error:
> This application failed to start because it could not find or load the
> Qt platform plugin "xcb".
> Well, it is correct, the xcb plugin is missing on the installation. I've
> google now for hours but I cannot find a solution.
> When building qtbase the configure script says that xcb backend is enabled:
>      XCB .................. yes (system library)
>
> My Application DEPENDS and RDEPENDS on qtbase and qtmultimedia, is that
> correct?
> Additionally I have set in my local.conf:
> IMAGE_INSTALL_append = " qtbase qt3d qtconnectivity qtmultimedia
> qtserialport qtsvg qtx11extras qplayerexample"
> DISTRO_FEATURES_append = " x11 xcb"
> qplayerexample is my application.
> I am building core-image-x11, DISTRO is poky, MACHINE is beagleboard.
> What do I have to do to get the xcb plugin?
>
> What I was wondering: in the poky configuration of yocto 1.6 one of the
> default image features is wayland. I have no idea of wayland (yet) and
> would like to stick to x11 for now. My guess is, that this variable is
> overwritten because I am building core-image-x11. Is that correct?
>
> Fabian