Android Question error implementing GPS

[cwt]

I am trying to add GPS to my app using the GPS tutorial.

I get this runtime error:

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.location.LocationManager.isProviderEnabled(java.lang.String)' on a null object reference

The error happens on the first line of the Activity_Resume sub in the Main module:

Sub Activity_Resume
If start_gps.GPS1.GPSEnabled = False Then
ToastMessageShow("Please enable the GPS device.", True)
StartActivity(start_gps.GPS1.LocationSettingsIntent) 'Will open the relevant settings screen.
Else
start_gps.rp.CheckAndRequest(start_gps.rp.PERMISSION_ACCESS_FINE_LOCATION)
End If
End Sub

Please help.

 

[Air]

Did you initialize the GPS before?

Sub Activity_Create

    start_gps.GPS1.Initialize("GPS")

end Sub

 

[Erel]

Please use [code]code here...[/code] tags when posting code.

Are you running the example as-is: https://www.b4x.com/android/forum/threads/gps-tutorial.6592/ ?

It should be initialized in the starter service.