Taifun File Error, Open Failed EPERM (Operaion not permitted)

[Nicholas_N]

i've tried copy one file to another file with different directoy, when screen initialize, iam used ak for persmiision : write external storegae block to give permissiion, but when iam exceute on apk or companion, its error with message Open Failed EPERM (Operaion not permitted)

[Anke]

@Nicholas_N

This Shared folder (/DCIM) does not work on Android 11+ for non-media files.
You must use one of these (or a subfolder in it):

• /Download or
• /Documents

With the TaifunFile extension you do not need to request WRITE permission for this on Android 11+ (only on Android < 11).

See also my overview here:

Some basics on Android storage system

From an Android point of view there are an → Internal Storage and an → External Storage . 1. Internal Storage The Internal Storage can only be accessed with a rooted device. 1.1 The app package is saved in /data/data/<packageName>/ In order to be able to debug your app, AI2 saves the assets for → Companion on devices with Android ≥ 10 (API ≥ 29): /storage/emulated/0/Android/data/edu.mit.appinventor.aicompanion3/files/assets/ Android < 10 : /storage/emulated/0/Android/data/edu.mit…

[Nicholas_N]

@Anke

This Shared folder (/DCIM) does not work on Android 11+ for non-media files.
You must use one of these (or a subfolder in it):

• /Download or
• /Documents

With the TaifunFile extension you do not need to request WRITE permission for this on Android 11+ (only on Android < 11).

thanks miss