Uncaught TypeError: Cannot read property 'fromLatLngToDivPixel' of null

[junalmeida]

MarkerClusterer.getExtendedBounds
MarkerClusterer.createClusters_
MarkerClusterer.redraw  
(anonymous function)    
_.J.trigger 
(anonymous function)    
_.J.trigger 
rb  
_.t.set 
bA.R

[farin]

did you call setMap(null) or try to remove overlay in different way?
Mind that there is function clearMarkers() for that purpose.

[SamanthaAdrichem]

I get this error when i execute:

markerCluster.setMap(null);

This is how many people advice to update your marker cluster, instead you should indeed use what farin says:

markerCluster.clearMarkers();
markerCluster.addMarkers( markers );