[AutoUpdater] Updater fails to update - Error 2

[ljosberinn]

The exact error message is:

Failed to uninstall old application files. Please try running the installer again.: 2

We're prompting the user to update via a banner. If the user proceeds, the frontend calls ipcRenderer.invoke which the backend receives and just calls autoUpdater.downloadUpdate().

This is our autoUpdater.on('update-downloaded':

  autoUpdater.on('update-downloaded', () => {
    if (updateAvailableVersion === null) return;

    try {
      const isMac = platform() === 'darwin';
      const isSilent = !isMac;
      const forceRunAfter = !isMac;

      autoUpdater.quitAndInstall(isSilent, forceRunAfter);
    } catch (error) {
      reportException(error);
    }
  });

So I believe we're not interfering with anything as much as we can. The app - in many cases, which makes this not reproducible for us - closes successfully, performs the update and reboots after. Works as intended, until it doesnt. In some cases, as that's been the solution, there's lingering processes.

Is there something we can do on our end to improve the situation?

[mmaietta]

What version of electron-builder/updater are you using? That error message looks very familiar as I recall applying a fix that I think might be related to what you're encountering. (Still trying to find the PR)