I tried to apply a patch directly to linux-gumstix_3.5.7.bb and kept .patch file in /yocto/poky/meta-gumstix/recipes-kernel/linux/linux-gumstix-3.5/ directory along with other patches, and ran bitbake gumstix-console-image. Output: ERROR: ExpansionError during parsing /home/zaif/yocto/poky/meta-gumstix/recipes-kernel/linux/linux-gumstix_3.5.7.bb: Failure expanding expression ${@bb.fetch.get_checksum_file_list(d)} which triggered exception MalformedUrl: The URL: 'missing' is invalid and cannot be interpreted ERROR: Command execution failed: Exited with 1 I removed the patch file and patch entry from linux-gumstix_3.5.7.bb, then ran bitbake gumstix-console-image, I get the same error. I then ran bitbake -c cleansstate linux-gumstix-3.5 bitbake world hob All of these returned the same error: ERROR: ExpansionError during parsing /home/zaif/yocto/poky/meta-gumstix/recipes-kernel/linux/linux-gumstix_3.5.7.bb: Failure expanding expression ${@bb.fetch.get_checksum_file_list(d)} which triggered exception MalformedUrl: The URL: 'missing' is invalid and cannot be interpreted ERROR: Command execution failed: Exited with 1 I am trying to add this patch: http://pastebin.com/W3S6hW0M Did I messed up something ?