Flutter Desktop MacOS unable to create a directory outside of project folder

Issue

I am trying to create a directory outside of the project directory on MacOS Pro Big Sur V11.6 through a Flutter desktop app. I am using directory.createSync(recursive: true); of dart:io to do it. But that line of code caused an exception: FileSystemException (FileSystemException: Creation failed, path = '/Users/test/flutter_conductor_checkouts' (OS Error: Operation not permitted, errno = 1))

directory is LocalDirectory (LocalDirectory: '/Users/test/flutter_conductor_checkouts'. I changed the Security & Privacy of my Mac to allow Full Disk Access to VScode and Terminal, but the error still persists.

Is there a way to create a directory with a Flutter desktop app outside of the project directory on MacOS?

Solution

I found out what was the issue:

The app was sandboxed by default. It's shelling out the app which makes it impossible to create a directory outside of the app. I removed all com.apple.security.app-sandbox from the entitlements file in the macOS build folder.

And that worked for me.

Answered By - Isaak Newton