I got the following error attempting to "bitbake core-image-base" for mys6ul14x14:
ERROR: ParseError at /home/totalit/MYS6ULx-devel/fsl-release-yocto/sources/meta-myir-imx6ulx/recipes-fsl/images/fsl-image-gui.bb:4: Could not include required file recipes-fsl/images/fsl-image-validation-imx.bb
I tried to copy this file from meta-fsl-bsp-release directory, but it entails another error.
I'm using MYS-6ULX full package and didn't modify any file except bblayers (it can't find the machine folder without it).