I'm having some problems getting permissions to the external storage on android devices with flutter.

When I try to create a directory in my external storage I get this error (I've changed the directory just for this example. In my own project the directory name is different):

```
I/flutter (12727): ══╡ EXCEPTION CAUGHT BY GESTURE ╞═══════════════════════════════════════════════════════════════════
I/flutter (12727): The following FileSystemException was thrown while handling a gesture:
I/flutter (12727): Creation failed, path = '/storage/emulated/0/com.domain.bundle' (OS Error: Permission denied,
I/flutter (12727): errno = 13)
I/flutter (12727): 

```

I've already added  

`<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />`  

to the manifest file and rebuild the entire project. What else can I try?

Also just listing all the files in the external storage gives the same permission error.

Hope to hear!