Hi, Please check the build log. It will have similar issue as below: 16:22:50 ERROR: Exception(/localdisk/loadbuild/slin14/starlingx/std/rpmbuild/SRPMS/syslog-ng-3.5.6-3.el7.tis.20.src.rpm) Config(mock/b0) 0 minutes 32 seconds 16:22:50 INFO: Results and/or logs in: /localdisk/loadbuild/slin14/starlingx/std/results/slin14-starlingx-tis-r5-pike-std/syslog-ng-3.5.6-3.el7.tis.20 Then you could check the build.log in upper folder. It will show you why there is build failure. Best Regards Shuicheng From: scottk@optimcloud.com [mailto:scottk@optimcloud.com] Sent: Thursday, September 6, 2018 10:56 AM To: starlingx-discuss@lists.starlingx.io Subject: [Starlingx-discuss] Developer Guide / build failures going through the latest docs from https://wiki.openstack.org/wiki/StarlingX/Developer_Guide ive gone through all steps as desccribed and getting a final iso built still is not possible 17:37:53 Recreate repodata 17:38:07 17:38:07 Failed to build packages: integrity-kmod-4.12-0.tis.5.src.rpm ######## Wed Sep 5 17:38:07 UTC 2018: build-rpm-parallel --std failed with rc=1 Wed Sep 5 17:38:07 UTC 2018: build-rpm-parallel --std failed with rc=1