[Qt-creator] Sub Project tree wont expand in Qt-Creator Snapshot

[Gandi Wibowo]

I have a project with 2 sub directories, and i've add it to *.pro file.
When i open it using Qt-Creator that included in Qt SDK 2010.5.1 in
linux, it can open normal. But when i open it using QT Creator Snapshot,
why it cannt load the file in sub directories? i attach the screenshot
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