Cannot use --build-on, architecture list is already set in snapcraft.yaml.

[John Lenton]

If my snap has no 'architectures' entry, I can happily do

snapcraft remote-build --build-on=armhf

However as soon as I add something like, say

architectures:
  - build-on: armhf
  - build-on: amd64

then I can no longer ask for just the armhf build from the commandline; I need to edit the yaml directly.

This is awkward when I'm trying to fix build errors in particular architectures in my snap.

[Sergio Schvezov (sergiusens)]

We error on this as launchpad will ignore the request if an architectures entry is set in snapcraft.yaml.

Happy to remove it as soon as it is fixed on Launchpad.

[Snapcrafters Bot (snapcrafters-bot)]

Has this been fixed in Launchpad? This makes it difficult to use the GitHub actions "matrix" for building snaps, as every instance of the matrix will build all versions.