Map not visualizing data

[ecracer]

I am attempting to create some basic reports of incident counts using the map visualizations as heat maps.  I am only receiving partial results.  I have all locations created, with lat and lon for them all.  All locations have countries.  All US locations have states specified.  I am receiving the following warning message:"

WARNING: Some of the data you selected cannot be visualized in this report. Save this report and ask your system administrator to correct errors with mapping for these records"

What do I need to do to resolve this issue?

[Karan Dighe1]

Hi 
While creating the map reports
 WARNING: Some of the data you selected cannot be visualized in this report. Save this report and ask your system administrator to correct errors with mapping for these records"

Solution:
Create the map source to add in 'Configure > Map this data'

Generate map source levels in the report > map source.