SOFTWARE VERSION:
Qt Creator 2.4.82 (2.5.0-pre-rc) Beta
Based on Qt 4.8.1 (32 bit)
Built on Apr 13 2012 at 01:44:03
From revision 4cabd8b0a1

PRECONDITIONS:
Qt Creator installed to desktop. Device and Simulator are configured.
Example project (Qt Quick Application - Build-in Elements) is opened, a breakpoint is added to a qml file.
Build target is set to Debug. Device or Simulator is chosen.
C++ and QML are enabled in Debugger Settings under Run settings.

STEPS:
1. Click Debug icon to switch to debug mode.
2. Select Debug > Start Debugging (or F5).

EXPECTED OUTCOME:
Application is debugged successfully.

ACTUAL OUTCOME:
Error Qt Creator:"Could not connect to the in-process QML debugger. The application is not ser up for QML/JS debugging." Debugger logs are in the attachment.

OTHER INFO:
Reproducible with the Device (N9) and with the Simulator.