As per Nick Baker removing alert box messages when visualizations fail and changing to a console log if it is available.

Related to this support tickets and JIRA case(s):
https://support.pentaho.com/tickets/43263
https://support.pentaho.com/tickets/43035
https://support.pentaho.com/tickets/33342
https://support.pentaho.com/tickets/37688
https://support.pentaho.com/tickets/38714
https://support.pentaho.com/tickets/38606
http://jira.pentaho.com/browse/ANALYZER-2059