To reproduce:

1. Run Ensemble8
2. Click on the AreaChart demo

The following error message will be printed and the X-axis and Y-axis location choice boxes fail to display.

Warning! The following property doesn't have corresponding controller: PlaygroundProperty{fieldName=xAxis, propertyName=side, properties={}}
Warning! The following property doesn't have corresponding controller: PlaygroundProperty{fieldName=yAxis, propertyName=side, properties={}}

This was introduced by the following fix:

changeset: 6593:dbc816d19498
user: Martin Sladecek <martin.sladecek@oracle.com>
date: Wed Apr 02 14:49:25 2014 +0200
summary: RT-23097 [Charts] chart is confused, when swap axises sides.