Unable to add Flutter Module to Flutter Application/Project

Unable to add Flutter Modules to my Flutter Project so that I can separate out common logic/ui etc that will be used across multiple apps.

## Steps to Reproduce

- Create a new, default, Flutter Project
- Click on `File -> New -> New Module`
- From the 'New Module' dialog box, select Flutter and click Next
- Change the Project Type to 'Module', leave all other settings as-is and click 'Finish'

## Expected
A new Flutter Module to appear in my project.

## Actual
An error dialog box appears: 'Internal Error: Unable to determine Flutter project directory'.

## Version info

[flutter_doctor.txt](https://github.com/flutter/flutter-intellij/files/9538319/flutter_doctor.txt)