Building snap with stage packages on CI (question)

• Version: 22.5.1

• Electron Version: 8.2.3
• Electron Type (current, beta, nightly): current

• Target: Linux (Snap)

My application is configured to build and publish snaps with an additional stage package configured as follows:

"snap": {
      "stagePackages": [
        "default",
        "libglu1-mesa"
      ]
}

The Multi Platform Build docs page states that the following commands must be run to allow this to work:

sudo snap install snapcraft --classic
sudo snap install multipass --beta --classic

thus my Travis CI configuration looks like this:

addons:
      snaps:
        - name: snapcraft
          confinement: classic
        - name: multipass
          confinement: classic
          channel: beta

However, when running a build, I receive the following error:

Setting target machine to 'amd64'
Launching a VM.
launch failed: multipass socket access denied
Please check that you have read/write permissions to '/var/snap/multipass/common/multipass_socket'
An error occurred with the instance when trying to launch with 'multipass': returned exit code 2.
Ensure that 'multipass' is setup correctly and try again.

Snapcraft’s documentation seems to suggest that using the --destructive-mode flag would bypass the need for multipass entirely and resolve the issue, however to the best of my knowledge there isn’t an option to do this with electron-builder. I would be grateful for any insight into this.

[adam-lynch]

While looking into another issue, I discovered export SNAP_DESTRUCTIVE_MODE="true" disables multipass too

[khrj]

Hi, I was stuck with the same issue about 2 days ago. You can set

export SNAPCRAFT_BUILD_ENVIRONMENT=host

and remove the multipass snap completely