Build.snapcraft.io build failing due to ancient snapcraft

snapcraft
1

build.snapcraft.io used to use the snapcraft snap. However, my latest builds have started failing because it’s now using the apt package from the repo’s which is ancient.

Setting up snapcraft (2.43.1+18.04) ...
Setting up git (1:2.17.1-1ubuntu0.5) ...
Processing triggers for systemd (237-3ubuntu10.39) ...
Processing triggers for libc-bin (2.27-3ubuntu1) ...
/usr/lib/python2.7/dist-packages/pylxd/model.py:116: UserWarning: Attempted to set unknown attribute "description" on instance of "Container"
  key, self.__class__.__name__
Running repo phase...
Cloning into 'ghtt'...
[14/Mar/2020:22:30:24 +0000] "CONNECT github.com:443 HTTP/1.1" 200 36952 "-" "git/2.17.1"
Running pull phase...
Issues while validating snapcraft.yaml: Additional properties are not allowed ('title' was unexpected)
Build failed
2

Do you have a base specified?

3

Yes, this is one of the failing snaps: https://github.com/IBCNServices/ghtt/blob/master/snap/snapcraft.yaml#L8

For reference; This is the full build log: https://build.snapcraft.io/user/IBCNServices/ghtt/868729

4

Well that’s weird. I have no idea why that would happen. Pinging @sergiusens who might. (or indeed @wgrant who appears to be around) :smiley:

5

This is a bit of a mystery. Can you try requesting another build from build.snapcraft.io and see if it still happens?

I don’t know build.snapcraft.io well, but I’ve had a look at what Launchpad did on the backend. That snapcraft.yaml is correct, and I can see that LP fetched it when determining whether to use snapcraft from apt or a snap, but for some reason LP decided no base was specified (channels={"snapcraft": "apt"}). I’ve created my own version of the snap recipe on Launchpad which is configured equivalently, and it built fine on amd64.

6

this has been pinpointed to a new rollout done on the webfront where they are incorrectly setting the “channels” which forces the default to use the deb.

channels is set to "snapcraft,apt" which makes little sense.

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