[yocto] "bitbake core-image-sato" yields "No package 'gdk-x11-3.0' found" build failure

[Jean-Baptiste MARIE]

Hello,
I am facing a problem that has already been addressed but not solved yet.
When building "bitbake core-image-sato" for SolidRun iMX6 SOM, I always get
an error message during configure task of matchbox-panel-2. The error is
the following:
checking for glib-2.0
                  gmodule-export-2.0
                  x11
                  gdk-x11-3.0
                  gtk+-3.0... no
configure: error: Package requirements (glib-2.0
                  gmodule-export-2.0
                  x11
                  gdk-x11-3.0
                  gtk+-3.0) were not met:

No package 'gdk-x11-3.0' found

If I run bitbake gdk-x11-3.0, I get:
ERROR: Nothing PROVIDES 'gdk-x11-3.0'

Any idea of what is wrong please?

Thanks for your help.
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