Hello; I'm working on a Ubuntu 18.04 machine. and NXP release L5.4.24 for IMX8M Mini. I did successfully "bitbake" my custom image. Then I am trying to add support for openjdk-8. Referred " How to add openjdk to Yocto Layers ( https://community.nxp.com/docs/DOC-345333 ) " I did " git checkout -b *zeus* origin/zueus" I did modify bblayers.conf and local.conf as per the guide. But when I tried to do "bitbake openjdk-8", got following error: Initialising tasks: 100% |###################################################################################################################################################################| Time: 0:00:01 Sstate summary: Wanted 122 Found 87 Missed 35 Current 368 (71% match, 92% complete) NOTE: Executing Tasks NOTE: Setscene tasks completed *ERROR: ecj-bootstrap-native-1.0-r1 do_prepare_recipe_sysroot: The file /usr/include/gc.h is installed by both bdwgc-native and cacao-native, aborting* *ERROR: Logfile of failure stored in: /home/ayman/YOCTO/imx_repo/menzu/tmp/work/x86_64-linux/ecj-bootstrap-native/1.0-r1/temp/log.do_prepare_recipe_sysroot.14496* *ERROR: Task (/home/ayman/YOCTO/imx_repo/sources/meta-java/recipes-core/ecj/ecj-bootstrap-native.bb:do_prepare_recipe_sysroot) failed with exit code '1'* NOTE: Tasks Summary: Attempted 1032 tasks of which 1029 didn't need to be rerun and 1 failed. Summary: 1 task failed: /home/ayman/YOCTO/imx_repo/sources/meta-java/recipes-core/ecj/ecj-bootstrap-native.bb:do_prepare_recipe_sysroot Summary: There was 1 ERROR message shown, returning a non-zero exit code. Would you please provide some pointers to resolve this issue? Thanks and regards.