Bug? AddToMediaStore error

The following code causes the java exception "java.lang.NullPointerException" (see Exception.txt attachment).
Dim oRM As RingtoneManager
.
.
.
Log("rtfile = " & rtfile)
Log("st = " & st)
u = oRM.AddToMediaStore(File.DirRootExternal & "/Ringtones", rtfile, st, False, False, True, False)
.
.
.

Directory Ringtones resides in the phone File.DirRootExternal directory.

The ringtone file '_Another_brick_in_te_wall.mp3' exists in the Ringtones directory.

B4A version : 10.2
B4A is a wonderful product.

Thank you for any help.

Please post Errors as TEXT (right click to copy)

Please upload a small project that demonstrates the problem.

Erel said:

Please upload a small project that demonstrates the problem.

Click to expand...

Prject included.
Thanks

1. You are not handling the permission correctly.
It shouldn't be inside the FirstTime block.

2. The file name was wrong.
I've changed it to:

Worked fine.

OK. I tried again: the problem occurs when the file has already been defined. How can we know the URI of already defined files?
Thanks

I don't see any bug here. For further discussion, please start a new thread in the questions forum.