Unable to change custom download path

[cjliux]

Checklist

• I am able to reproduce the bug with the latest debug version (Android, Linux, Windows)
• I've checked that there is no open or closed issue about this bug.
• This issue contains only one bug.
• The title of this issue accurately describes the bug.

Steps to reproduce

1. install spmp on windows 10 pro
2. run spmp in admin mode
3. try to change custom download path, but the path selector can not choose a folder, so create a txt file and select it.
4. reopen spmp in admin mode
5. try to change custom download path again, and it will crash

Expected behavior

1. able to select a folder as custom download path
2. when it isn't a folder, prompt error
3. when the path is erroneously set, prompt for correct path

Actual behavior

error prompt when entering the same config panel again

Screenshots / recordings

Logs

as is shown in screenshots

SpMp version

0.4.0

SpMp platform

Windows

OS version

windows 10 pro

Additional information

No response

[cjliux]

Maybe I can solve the problem myself if provided with the config file path and edit it manually. As it won't be deleted after uninstallation, I can't fix it by just reinstalling spmp.

[cjliux]

I finally find out the preferences.json that lies in AppData/Local/Spmp，but it seems that colon mark cannot be recognized by spmp. I dont know how to write a windows path in it.