I am trying to run a program I made in Qt, but have gotten a strange error:

"The procedure entry point ?detach@QListData@@QAEPAUData@1@H@Z could not be located in the dynamic link library QtCore4.dll"

I've searched online for an answer, but can't find anything related to this. I've found other people with other "procedure entry point" errors, but they were all after the user updated his version of Qt. I haven't.

So any help would be appreciated.