I am trying to create a marker in the way you mentioned but I am getting the following error :
Runtime Error : 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.
Below I have attaced my coding blocks
Please help me to identify the mistake
Just remove quotations " " from text
It worked Thank You 
Help needed. To add one location which is loaded with Location sensor
and a list of tags from Firebase
When we use the content in a single line it is working, But when we use in his kind of block, it is not working. Help needed.
Show us your blocks cause you most probably you are doing something wrong. I use join text to create marker json with no problem
I found the Mistake. In the Location name i used a Space. I replace the space with “-” and the problem is solved.
Thank you so much
Can you help me? I did the same thing as you did with error 12014 when showing the markers on the map.
Please debug your blocks with Do it and show me the values in global_json . Most probably in title or snippet you have empty spaces. For example if title is My home you will receive error 12014 but if title is My_Home then no error
I managed to solve the problem, really my title had spaces, but in order to use spaces I just put “” in the title and subtitle in json, leaving it like this 
i tried this method but for me it is not showing marker can some plz help me
Welcome
I used firebase db to store and retrive data i can store the marker data but can’t retrive it
it is showing a blank space when i ask for the data in lable
I tried it but it is still showing nothing.the lable is still empty.did you get many markers or just one
Is firebase configured correctly ? url, token , bucket ?
