launchpad error: GPG pub key not verified snappy-dev/tools/ubuntu xenial

[r2geo]

When building a snap, launchpad throws a GPG error that I suspect is a launchpad problem, not related to my script. Am I correct?

The main error is: GPG error: http://ppa.launchpad.net/snappy-dev/tools/ubuntu xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F1831DDAFC42E99D
W: The repository 'http://ppa.launchpad.net/snappy-dev/tools/ubuntu xenial InRelease' is not signed.
W: There is no public key available for the following key IDs:F1831DDAFC42E99D

when I install on my pi3, it fails on: $ snap install openhab_r2geo_2.0.0.b4-7_armhf.snap
error: cannot find signatures with metadata for snap "openhab_r2geo_2.0.0.b4-7_armhf.snap"

Is this GPG error related to https://bugs.launchpad.net/launchpad/+bug/1626739?

My snap: https://launchpad.net/~r2geo/+snap/openhab-snap-r2

Thanks,

Roeland

[Colin Watson (cjwatson)]

The error you're seeing there is harmless and unrelated to the problem you're seeing. To the extent that it's a problem at all (not really in this particular case), it'll be fixed by fixing bug 1626739.

Launchpad doesn't itself create signed assertions for the snaps it builds. Depending on your exact needs, you can either:

 * tell Launchpad to upload this snap to the edge channel in the store, after which you should be able to install it with "snap install --edge openhab";
 * generate a developer key using "snapcraft create-key" and "snapcraft register-key" if you haven't already done so, generate a signed snap-build assertion for the .snap file using "snapcraft sign-build", and add it to the system assertion database using "snap ack";
 * ignore the lack of signatures using "snap install --dangerous".

[Colin Watson (cjwatson)]

To be clear, I mean that the GPG error you're seeing from Launchpad is harmless and unrelated. Obviously the error you're seeing from "snap install" needs to be addressed somehow, i.e. in one of the ways I outlined in my previous message.

[r2geo (r2geo)]

Thanks Colin, I will follow up on your advice. Will this bug report close itself?

[Colin Watson (cjwatson)]

It's marked as a duplicate now, which is good enough.