Please help me to find out what's wrong? Google Map

I want to add a marker on the google map.
But this error occurred.
Attempt to invoke virtual method ‘com.google.android.gms.maps.model.Marker com.google.android.gms.maps.GoogleMap.addMarker(com.google.android.gms.maps.model.MarkerOptions)’ on a null object reference
Note: You will not see another error reported for 5 seconds.
This is my blocks:
blocks

When you call this procedure ? Is map ready ?

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Most probably you are calling the procedure on screen initialize

Try this way using a clock component and give map a few milliseconds in order to load

Thanks for the help!

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