Build BalenaOS for NXP-iMX6UL failed

Hi, i was trying to customize the BalenaOS for Armadeus - OPOS6UL based on NXP iMX6UL processors. I’ve followed the steps in " IoT Happy Hour #45: Building balenaOS for a Device" and downloaded “balena-os/balena-variscite " repository from Github to start with. I’ve modified the”/balena-variscite/.coffee, /conf/machine/.conf and /recipes-core/images/balena-image.inc files as explained in the tutorial. I’ve used Ubuntu 16.04 LTS as my host machine and successfully built the image up to 99% (4528 tasks out of 4544 precisely). Now i have the below errors while creating rootfs

NOTE: recipe balena-image-flasher-1.0-r0: task do_rootfs: Failed
ERROR: Task (/home/user/balena-variscite/build/…/layers/meta-balena/meta-balena-common/recipes-core/images/balena-image-flasher.bb:do_rootfs) failed with exit code ‘1’

NOTE: recipe balena-image-1.0-r0: task do_rootfs: Failed
ERROR: Task (/home/user/balena-variscite/build/…/layers/meta-balena/meta-balena-common/recipes-core/images/balena-image.bb:do_rootfs) failed with exit code ‘1’

If anyone had this issue with OS customization, I would really appreciate any guidance. Thanks!

Hi, sorry for the late reply. We would really need to see more of the error output to help out.