Using uck returned :gdk_error_trap_pop_internal: assertion `trap != NULL' failed

Looks like you are trying to remaster a CD that has a different architecture than your host (e.g. x64 CD on i686 host) - this will not work because your host cannot execute commands in the CD environment.

On Tue,  5 Mar 2013, 14:35:48 CET, J.P. Cloot <email address hidden> wrote:

> New question #223453 on Ubuntu Customization Kit:
> https://answers.launchpad.net/uck/+question/223453
>
> Uck build failure:
> Building failed.
>
> Please look at /home/jp/tmp/build.log to see what went wrong.
>
> If you cannot find the problem, please send a support request at:
>
>     https://launchpad.net/products/uck/+addticket
>
> Build.log:
> Build (/usr/bin/uck-gui --wait-before-exit) started at 2013-03-05
> 08:12:43
> > > Ubuntu Customization Kit 2.4.7 on Ubuntu 12.10, 3.5.0-25-generic i686
> Starting CD remastering on  Tue Mar 5 08:12:50 EST 2013
> Customization dir=/home/jp/tmp/customization-scripts
> Mounting ISO image...
> mount: warning: /home/jp/tmp/remaster-iso-mount seems to be mounted
> read-only. Unpacking ISO image...
> Unmounting ISO image...
> Mounting SquashFS image...
> mount: warning: /home/jp/tmp/remaster-root-mount seems to be mounted
> read-only. Unpacking SquashFS image...
> Unmounting SquashFS image...
> Creating apt cache...
> Creating root home...
> Mounting /proc
> Mounting /sys
> Mounting /dev/pts
> Mounting /tmp
> Mounting /home/jp/tmp/remaster-root-home
> Mounting /home/jp/tmp/remaster-apt-cache
> Mounting /run
> Mounting /home/jp/tmp/customization-scripts
> Copying resolv.conf...
> Copying fstab/mtab...
> Creating DBUS uuid...
> Creating user directory...
> Copying X authorization file to chroot filesystem...
> chroot: failed to run command `xauth': Exec format error
> Unmounting /home/jp/tmp/remaster-root/var/cache/apt...
> Unmounting /home/jp/tmp/remaster-root/tmp/customization-scripts...
> Unmounting /home/jp/tmp/remaster-root/tmp...
> Unmounting /home/jp/tmp/remaster-root/sys...
> Unmounting /home/jp/tmp/remaster-root/run...
> Unmounting /home/jp/tmp/remaster-root/root...
> Unmounting /home/jp/tmp/remaster-root/proc...
> Unmounting /home/jp/tmp/remaster-root/dev/pts...
> Failed to merge X authorization file, error=126
>
> (zenity:14858): Gdk-CRITICAL **: gdk_error_trap_pop_internal: assertion
> `trap != NULL' failed
>
> I am using a Samsung N 150 netbook, Atom cpu, 160 g drive, 1 g ram, 2 g
> swap.
>
> --
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> contact for Ubuntu Customization Kit.