Runtime error looking for QtPiBTFirmata

Armeen_Kaur · April 28, 2021, 2:02pm

Runtime error attempt to invoke virtual method 'com.google.appinventor.components.runtime.QtPiBTFirmata com.google.appinventor.components.runtime.BluetoothClient.getBTFirmata()'on a null object refernce

Pradevel · April 28, 2021, 2:43pm

I think you are getting null (empty value) value from the input you are giving
I am not sure can you show your blocks?

Kumaraswamy · April 28, 2021, 2:53pm

Where are you getting the error? Code? Blocks? This info provided is not sufficient at all.

ewpatton · April 28, 2021, 8:55pm

We don't provide a component called QtPiBTFirmata. If this is a component that you've implemented yourself, you likely need to install the companion APK file built in your local sources. Do not use the version from the Play Store since it won't have the code for this new component.