"No build command found, continuing to publishing" Build stuck at building phase

4:17:09 PM: Build ready to start
4:17:11 PM: build-image version: b0258b965567defc4a2d7e2f2dec2e00c8f73ad6
4:17:11 PM: build-image tag: v3.4.1
4:17:11 PM: buildbot version: 0e3cc7aef5c33f731b54ed4b65d515eaab821679
4:17:11 PM: Fetching cached dependencies
4:17:11 PM: Starting to download cache of 3.6MB
4:17:11 PM: Finished downloading cache in 135.391171ms
4:17:11 PM: Starting to extract cache
4:17:11 PM: Finished extracting cache in 56.404739ms
4:17:11 PM: Finished fetching cache in 193.005852ms
4:17:11 PM: Starting to prepare the repo for build
4:17:12 PM: Preparing Git Reference refs/heads/master
4:17:13 PM: No build command found, continuing to publishing
4:17:14 PM: Finished processing build request in 2.647261839s

it shows deploy in progress even though it finished processing. Reason?? @luke