使用QT creator编译一简单程序失败。错误如图,帮忙看看是什么问题?
内容是:Running build steps for project mjlibcap...
Starting: "/usr/bin/qmake-qt4" /home/cpxie/srouce/mjlibcap-build-desktop/mjlibcap.pro -r -spec linux-g++ CONFIG+=debug
/home/cpxie/srouce/mjlibcap-build-desktop/mjlibcap.pro:21: Parse Error ('-lpcap')
Error processing project file: /home/cpxie/srouce/mjlibcap-build-desktop/mjlibcap.pro
The process "/usr/bin/qmake-qt4" exited with code %2.
Error while building project mjlibcap (target: Desktop)
When executing build step 'qmake'