Automation Guide Diagnosing and resolving automation errors

 TestArchitect is unable to select multiple items on a single-selection control <controlName>, which resides in the <windowName> window. Please ensure that only a single item is selected on the control.

TestArchitect is unable to select multiple items on a single-selection control <controlName>, which resides in the <windowName> window. Please ensure that only a single item is selected on the control.

Error code: 0x80010408L

Problem

This happens because the given control is single selection, but you use a UI-interactive action to select more than one item.

Solution

Remove the redundant items to be selected from the single selection control, and re-run the test.