Maker-Squirrel installer not installing Electron 10 apps correctly

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• 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.53
• Electron Version:
  • 10.0.0
• Operating System:
  • Windows (All versions)
• Last Known Working Electron Forge version::
  • N/A

Expected Behavior

Installing a basic Electron app on Windows (via the squirrel.windows Setup.exe produced by electron-forge make) should allow the app to run correctly.

Actual Behavior

The renderer process of the installed app appears to crash/hang, resulting in a blank window.

To Reproduce

1. Create a minimal Electron Forge app (via npx create-electron-app my-app or otherwise).
2. Verify the app is using >= v10.0.0 of Electron.
3. run electron-forge make.
4. Install the app.

Additional Information

I believe I’ve tracked this down to the installer not copying libEGL.dll and/or libGLESv2.dll (located in the swiftshader folder of the packaged app) into the app-x.x.x folder for the app in AppData. If I manually copy the swiftshader folder across, the app works again.

This issue is only present in version 10 of Electron; version 9 and below install and run correctly.

Just to clarify, this is only an issue with the installed version of the app (seemingly due to the missing folder described above); running electron-forge start or running the app from the output of electron-packager works fine.

[malept]

This will be fixed when electron/windows-installer#367 is fixed.

[Nawv]

@malept After some further testing, this problem is consistently only occurring on virtual machines (and it’s manifested on every VM we’ve tried it on so far). I don’t know if you’ve tried this on a VM, or if you could easily get your hands on one? I’m using a Windows 10 dev environment through Virtual Box (on a Mac laptop).

In terms of the differences in the file/folder hierarchy between the zipped version and the squirrel version, the only important difference I can sport is the swiftshader folder - here’s the zipped version:

And here’s the squirrel installed version:

As I said above, if I copy the swiftshader folder across to the squirrel installed folder, the installed app works fine. Similarly, if I delete the swiftshader folder from the zipped version, the zipped app stops working (i.e. blank screen).

I’ve also checked, and there’s no difference (that I can spot) in the file/folder hierarchy of the squirrel installed app between machines on which the app works, and machines on which it doesn’t.