Map Report - ERROR: Cannot generate the report. Chart series summary generation failed null

[Brian Lancaster]

We have a filed on our incident form called affected location.  It is of type list and references the cmn_location table.  I have the latitude and longitude set on the location and created a map source but I get the "ERROR: Cannot generate the report. Chart series summary generation failed null".  Is this because it is a list field instead of single select reference field?

[Adam Stout]

For reporting on lists, what I do is add a new table that references my table with the list.  Then have a BR on the main table that populates/updates the child table when the list changes. Then build your report on the child table.

[rrataj]

I have the same error with a box plot chart, 
seems to be some issue with data volumes ( or some corrupted data form the past ?) 
seems a chart can be generated for a week but can not for 3 months.

seems There were some fixes in London release but it still does not work for me 
PRB1316184 - "Report - Time Series - Error: Cannot generate the report. Chart series summary generation failed null"

 

[antonthemark]

Hey @rrataj  I was going through your command and could see the same Error in KB articlet report .When the KB article table (kb_knowledge) coloum Name = Valid to  date has dictionary Override by changing the  Default value to NULL , The issue got fixed .Simailarly you can check based on your repoting Table