The debugger could not load the debugger helper library

Quote:

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Debugging Helper Missing
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The debugger could not load the debugging helper library.
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The debugging helper is used to nicely format the values of some Qt and Standard Library data types. It must be compiled for each used Qt version separately. In the Qt Creator Build and Run preferences page, select a Qt version, expand the Details section and click Build All.
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Continue Anyway Open Qt Options Turn off Helper Usage Hide Details...
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I'm running Qt 5, QtCreator 2.6.1, and MinGW 4.7. I compiled Qt myself and it works fine. Qt Creator won't display the nice debugger output for std containers; how can I get the nicely formatted debugging information?

Does anyone have precompiled MinGW 4.7 / Qt 5 debug helper files they can send me? I completely have zero clue what I need to do to get the debugger information working. I downloaded the latest gdb-python version using mingw-get, and put it in my path, so a regular command-console run of "gdb" followed by "python print 23" prints out '23', but QtCreator still complains about the missing debugger helper library.

When I go to Qt Options, there is no option to "Build All" like the pop-up message (quoted above) suggests - it's all greyed out:
Attachment 8582

In an unrelated note, since I upgraded to QtCreator 2.6.1, the "on exception thrown" breakpoint doesn't seem to be working for me. The "on exception caught" breakpoint works though.