ERROR: Failure expanding variable None, expression was ${@bb.fetch2.get_srcrev(d)} which triggered exception FetchError: Fetcher failure for URL: 'git://git.yoctoproject.org/linux-2.6-windriver.git;protocol=git;nocheckout=1;branch=${KMACHINE}-preempt_rt,wrs_meta;name=machine,meta'. Please set SRCREV to a valid value
ERROR: Command execution failed: Exited with 1