Electron-forge: [typescript-webpack] compiling preload hangs

[Andreybest]

Preflight Checklist

• [x] I have read the contribution documentation for this project.
• [x] I agree to follow the code of conduct that this project follows, as appropriate.
• [x] 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.47
  
  
• Electron Version:
  
  
  
  • 7.1.8
  
  
• Operating System:
  
  
  
  • Windows 10 (1909)
  
  
• Last Known Working Electron Forge version::
  
  
  
  • None
  
  

Expected Behavior

I was making a preload script, and then connecting by following this scheme (https://js.electronforge.io/plugin/webpack/interfaces/webpackpreloadentrypoint) in package.json

Actual Behavior

To Reproduce

1. Create new app using 'npx create-electron-app my-new-app --template=typescript-webpack'
2. Add any preload.ts file
3. Add MAIN_WINDOW_PRELOAD_WEBPACK_ENTRY to main.ts file
4. Add to preload config to package.json

You can clone my repository to see the issue.

Additional Information

Just using 'electron-forge start' to start the project, and then it stucks.

[SemtexError]

Any update or work around on this?
Can't compile the project because of this.

[malept]

Using preload works fine with the webpack template. It's just when using the typescript-webpack template, it hangs.

[malept]

Remove the async: false option from the ForkTsCheckerWebpackPlugin constructor in webpack.plugins.js. #1497 removes it from the template.