QT4头文件问题

main.cpp:21:17: error: QtGui: No such file or directory

解决：

因为qt3 以前的 include目录里面就直接是头文件了,而qt4的include目录底下还有目录才到头文件,但是qt4的pro出来的makefile的路径只到QTDIR/include 所以qt4的头文件最好是写成
#include <QtGui/***>
#include <Qt/***>
意思就是包含一下include中子目录的名字,再到头文件.

 

The problem is that include path is not set. Maybe your library path is not set either. Add the following to the shell(file .bashrc):
export QTDIR=/usr/local/qt
export PATH=$QTDIR/bin:.:$PATH
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$QTDIR/lib

Then you will be fine.

 

关于lib路径的问题，我看了下系统的环境变量，QTINC=/usr/lib/qt-3.3/include QTLIB=/usr/lib/qt-3.3/lib  于是我查找相应的/usr/lib/qt4目录下面并没有include和lib目录，在 Kdevelop中，引用的也是QT3的 ... [/quote]