Snap fails to build on Ubuntu 20.04 (multipass problem)

[ghost]

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• I have read the contribution documentation for this project.
• I agree to follow the code of conduct that this project follows, as appropriate.
• I have searched the issue tracker for a bug that matches the one I want to file, without success.

Issue Details

• Electron Forge Version:
  • 6.0.0-beta.52
• Electron Version:
  • 9.1.1
• Operating System:
  • Ubuntu 20.04 LTS x64
• Last Known Working Electron Forge version::
  • None

Expected Behavior

Builds the {app's name}.snap in out/make/snap/x64.

Actual Behavior

I've configured build to .deb, zip and snap. They build sucefully except snap, which gives this error:

✖ Making for target: snap - On platform: linux - For arch: x64

An unhandled error has occurred inside Forge:
An error occured while making for target: snap
Command failed with a non-zero return code (2):
/snap/bin/snapcraft snap --target-arch=amd64 --output=/home/user/app/out/make/snap/x64/app_1.0.0_amd64.snap
Error: Command failed with a non-zero return code (2):
/snap/bin/snapcraft snap --target-arch=amd64 --output=/home/user/app/out/make/snap/x64/app_1.0.0_amd64.snap
    at ChildProcess.<anonymous> (/home/user/app/node_modules/@malept/cross-spawn-promise/src/index.ts:155:16)
    at ChildProcess.emit (events.js:315:20)
    at ChildProcess.EventEmitter.emit (domain.js:482:12)
    at maybeClose (internal/child_process.js:1021:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)

As you see, this error says nothing.
I know it seems fixed in electron/forge#1531, but snapcraft apt package has been depercated (maybe because it now uses Multipass snap).

To Reproduce

Repo:
https://github.com/humanoide123/app
Clone, yarn install and yarn run make (or do the same with npm)
Manual:

• Get Ubuntu 20,04 (seems to work on older versions which have the snapcraft apt package)
• Run yarn create electron-app app-name --template=typescript-webpack (I'm using yarn, but guess it's not important)
• Install @electron-forge/maker-snap as devDependency (yarn add -D @electron-forge/maker-snap)
• Add the following to package.json:

{
  name: '@electron-forge/maker-snap'
  config: {
    summary: 'Pretty Awesome'
  }
}

• Run yarn run make or node_modules/bin/electron-forge make

Additional Information

• Run with debug enabled outputs this:

 Making for target: snap - On platform: linux - For arch: x64An error occurred with the instance when trying to delete with 'multipass': returned exit code 2.
Ensure that 'multipass' is setup correctly and try again.
✖ Making for target: snap - On platform: linux - For arch: x64
An unhandled error has occurred inside Forge:
An error occured while making for target: snap
Command failed with a non-zero return code (2):
/snap/bin/snapcraft snap --target-arch=amd64 --output=/home/user/app/out/make/snap/x64/app_1.0.0_amd64.snap
Error: Command failed with a non-zero return code (2):
/snap/bin/snapcraft snap --target-arch=amd64 --output=/home/user/app/out/make/snap/x64/app_1.0.0_amd64.snap
    at ChildProcess.<anonymous> (/home/user/app/node_modules/@malept/cross-spawn-promise/src/index.ts:155:16)
    at ChildProcess.emit (events.js:315:20)
    at ChildProcess.EventEmitter.emit (domain.js:482:12)
    at maybeClose (internal/child_process.js:1021:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)

It seems not important except for the message "An error ocurred with the instance... Ensure that Multipass is setup correctly and try again". Seems like a problem when invoking Multipass (i've already used snapcraft on another project, so I'm sure Multipass problem is not mine)

• Forge configuration in package.json:

"forge": {
      "packagerConfig": {
        "executableName": "app"
      },
        {
          "name": "@electron-forge/maker-zip",
          "platforms": [
            "darwin",
            "linux"
          ]
        },
        {
          "name": "@electron-forge/maker-deb",
          "config": {}
        },
        {
          "name": "@electron-forge/maker-snap",
          "config": {
            "summary": "lorem ipsum dominum"
          }
        }
      ],
      "plugins": [
        [
          "@electron-forge/plugin-webpack",
          {
            "mainConfig": "./webpack.main.config.js",
            "renderer": {
              "config": "./webpack.renderer.config.js",
              "entryPoints": [
                {
                  "html": "./src/index.html",
                  "js": "./src/renderer.ts",
                  "name": "main_window"
                }
              ]
            }
          }
        ]
      ]
    }

[malept]

I would suggest using an Ubuntu 18.04 container (e.g. malept/electron-forge-container:node-10) until a solution is found. Unfortunately, I don't have much free time available to debug why the version of snapcraft from Ubuntu 20.04 doesn't work.

[welcome]

👋 Thanks for opening your first issue here! If you have a question about using electron-installer-snap, read the support docs. If you're reporting a 🐞 bug, please make sure you include steps to reproduce it. Development and issue triage is community-driven, so please be patient and we will get back to you as soon as we can.

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[malept]

Since this is really an electron-installer-snap issue, I've moved it to that repository.

[ghost]

Ok, I can wait.
For me, seems like a problem because of the differences between Apt's (deprecated) snapcraft and snap's snapcraft. Snaps are very different from .debs. Snaps mount something like their own system (under /snap/{snap-name}), so maybe it's calling Multipass in a wrong place.
I'm gonna look at the code. Maybe can help :)

[markibanez]

Same error on Ubuntu 19.10

[davidwinter]

I'm experiencing this same issue on Ubuntu 20.10. I've migrated from electron-builder which was able to build snap artefacts fine. Not working at all with electron-forge.

I have snapcraft 4.4.2 installed via snap.

Electron Forge Version:

6.0.0-beta.54

Electron Version:

11.0.2

Operating System:

Ubuntu 20.10 x64

[davidwinter]

@markibanez would suggest looking at this package that I've created as this one appears to not be maintained anymore: https://github.com/davidwinter/electron-forge-maker-snap

[abulka]

I'm unable to build snaps on either 18.04 or 20.04 - see electron/forge#1652 (comment)

Is this project being maintained? Is there any further diagnostic information I can send that would help?

[davidwinter]

@abulka would suggest looking at this package that I've created as this one appears to not be maintained anymore: https://github.com/davidwinter/electron-forge-maker-snap