We have verified again, the build has no problem.
Note the prebuilt image in the binary release incluling mfg tool is also built from the same source code.
Please check your environment.
For how to setup the yocto environment, please refer yocto official site.
MACHINE=imx6slevk source fsl-setup-release.sh -b SL -e x11
bitbake fsl-image-mfgtool-initramfs
BB_VERSION = "1.22.0"
BUILD_SYS = "x86_64-linux"
NATIVELSBSTRING = "Ubuntu-12.04"
TARGET_SYS = "arm-poky-linux-gnueabi"
MACHINE = "imx6slevk"
DISTRO = "poky"
DISTRO_VERSION = "1.6.2"
TUNE_FEATURES = "armv7a vfp neon callconvention-hard cortexa9"
TARGET_FPU = "vfp-neon"
meta
meta-yocto = "(nobranch):30b8d9378b8260e452552b806610dc9b6fe0b69f"
meta-oe = "(nobranch):8065dd8456913457a0114ddb2b4bd4842847b2a3"
meta-fsl-arm = "(nobranch):9bc540eec9a7e280af13371ea70650fcc47ea627"
meta-fsl-arm-extra = "(nobranch):e1085deb3d915d2a95a65cceadc77c6de0dadfb6"
meta-fsl-demos = "(nobranch):f141c7d1158b8addbd6f1ed047a1b47c2ed85f8f"
meta-fsl-arm
meta-fsl-demos = "(nobranch):4ccf13efeef1c72768762921ba6e2c6537ed9f73"
meta-browser = "(nobranch):63963cc56c8d0291779693e62b66cb16e5c86883"
meta-gnome
meta-networking
meta-ruby = "(nobranch):8065dd8456913457a0114ddb2b4bd4842847b2a3"
meta-qt5 = "(nobranch):c29c317e0f22202bfaa85329a580564bbc179089"
meta-fsl-qt5
meta-fsl-bluez = "(nobranch):4ccf13efeef1c72768762921ba6e2c6537ed9f73"
NOTE: Preparing runqueue
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
NOTE: Tasks Summary: Attempted 1237 tasks of which 23 didn't need to be rerun and all succeeded.