Created attachment 325 [details] Sample sigdata file #1 When run against these two files, I get this error: tmp/stamps/i686-linux/m4-native-1.4.16-r2.do_patch.sigdata.04c90e788fd676f818948efc40b38d78 /local/p60_poky/tmp/stamps/i686-linux/m4-native-1.4.16-r2.do_patch.sigdata.b2393adda3b4af2f4f791b7211665591 taskwhitelist changed from None to (.*-cross$|.*-native$|.*-cross-initial$|.*-cross-intermediate$|^virtual:native:.*|^virtual:nativesdk:.*) Traceback (most recent call last): File "/tmp/poky-multi/bitbake/bin/bitbake-diffsigs", line 10, in <module> bb.siggen.compare_sigfiles(sys.argv[1], sys.argv[2]) File "/tmp/poky-multi/bitbake/lib/bb/siggen.py", line 268, in compare_sigfiles print "changed items: %s" % a_data['taskwhitelist'].symmetric_difference(b_data['taskwhitelist']) AttributeError: 'NoneType' object has no attribute 'symmetric_difference' These files attached to bug
Created attachment 326 [details] Sample sigdata file #2
Fixed in http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=d366c1890ee706870bbf6fec714fba9022a54329