Runtime error on start .apk with BLE

[lenoyl]

HI,
I have created an app to drive my soon’s RC car . the app is working nicely when launch using the companion, but when launched from the .apk I got immediately the following message ‘’ runtime error : Not connected to a bluetooth low energy device - end application’’

looking at some similar topic I have but all my button/ slider to disabled at start, but still have the message… so I don t know what to change more… see the code below.

Thus, why it is working with the companion and not the .apk?

by advance, thx

[Boban (Boban Stojmenovic)]

Since it worked with companion I can only guess that you haven’t granted permission in your app…

[lenoyl]

Hi Boban,
It was not requesting anything during the installation.
But I just had a try allowing position and storage (the only ones I can check on for this app), but it didn’t change the runtime message error problem …

[Boban (Boban Stojmenovic)]

Are you using the latest one MIT App Inventor + Internet of Things

[D_Apps]

In Your Phones Settings , Go To Apps , And There You Open Your App’s Permission’s And Enable The Permission… Hope It Works!

[lenoyl]

Yes I m using the latest BLE version (Had some discussion about it on another post in MIT community forum)

[lenoyl]

@ Dattaraj: already tried but it didn’t change the problem

[Boban (Boban Stojmenovic)]

Try by adding ask for permission manually

android.permission.ACCESS_FINE_LOCATION

[lenoyl]

ok, I just tried :

I added the permission manually
compiled/ downloaded /installed the app
giving the app full permission (position and storage)
then starting the app and…
I still have the same runtime error AND a new message error 908 saying the permission to fine location has been denied …

I m using a android 6 phone btw

[Boban (Boban Stojmenovic)]

Sorry I really don’t know what may cause the error on your side as I just tried with latest extension build and it automatically asked for permission.

[D_Apps]

Try Installing The Apk. On Other Device…

[lenoyl]

ok, well, my mistake, my BLE extension was not the latest release one (lost during the migration from MIT to Kodular… ). Now it is for sure: So this solve the permission problem (error 908) but I still have the runtime error at the start…
To what I understand It is expecting a BLE connection straight to the start: it cannot be linked to the part :
''when bluetoothLE.String.receive … ‘’ ??

[lenoyl]

@ Datta: the only other device that I have arround is apparently a a fake android9, were BLE is not working at all

[Shahvej_Alam]

please hlp