Moving Windows C++ project from Qt4 to 5 gives hundreds of seemingly unrelated compilation errors [closed]
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I upgraded to Qt5/msvc2010 and am now trying to build a project using Qt Creator that was working fine with Qt4/msvc2008 (no source code has changed since it was working). The project uses some COM elements to talk to external audio recording devices via an Olympus SDK. What could cause all of these errors when