Don't say "ERROR: 0" if there is no error in project_build.
Don't say "ERROR: 0" if there is no error in project_build.



Former-commit-id: 6adcd6221030d5ec2110bbcaca395de376235e48
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine