KB248892: "Cannot read property 'did' of undefined", error appears when formatting the color of an element on a Heat map in Visual Insight in MicroStrategy Web 10.0.

SYMPTOM:
In Strategy Web 10, users have the ability to add heat maps as visualizations and format the colors of the attribute elements used.  After a user selects an attribute element to format and then a color, the following error message appears and the color is not changed.

TypeError
Cannot read property 'did' of undefined

• Create a report with Category, Subcategory, and the Cost metric.
• In a VI dashboard, inseart a Heat Map Visualization. 
• Add Category to the "Grouping" dropzone.
• Add the Cost metric to "Size By" dropzone.
• Remove the cost metric from "Color By" .
• Add Subcategory to "Color By" .
• Right-click a box in the legend, on the right hand side, and click format as shown below.
  

• Choose a color to see the error message appear.

 
CAUSE:
This is an identified defect in Strategy Web 10.
 
ACTION:
This has been addressed in Strategy 10.0 HF 1. Upgrade to this version to take advantage of the fix.
 
The Strategy Internal Reference Number for the issue discussed in this technical note is 1015782.