Fixed error handling with optional repositories not present.
Fixed error handling with optional repositories not present.

spinnaker/spinnaker,stitchfix/spinnaker,jtk54/spinnaker,spinnaker/spinnaker,tgracchus/spinnaker,skim1420/spinnaker,duftler/spinnaker,skim1420/spinnaker,spinnaker/spinnaker,skim1420/spinnaker,duftler/spinnaker,imosquera/spinnaker,ewiseblatt/spinnaker,Roshan2017/spinnaker,stitchfix/spinnaker,imosquera/spinnaker,jtk54/spinnaker,ewiseblatt/spinnaker,ewiseblatt/spinnaker,Roshan2017/spinnaker,tgracchus/spinnaker,spinnaker/spinnaker,stitchfix/spinnaker,tgracchus/spinnaker,ewiseblatt/spinnaker,Roshan2017/spinnaker,imosquera/spinnaker,duftler/spinnaker,jtk54/spinnaker,duftler/spinnaker,skim1420/spinnaker