Qmake 未指定有效的 qt
安装Qt后按照相应步骤在 Mac OS 上进行开源 C++ 开发的 SDK
二进制包注意事项：如果你有二进制包，只需 双击 Qt.mpkg 并按照说明安装 Qt。
是的，这就是我在 MacOsX 上安装 Qt 所做的全部工作。一切都很顺利，直到我运行一个示例应用程序，其中编译输出导致：
No valid Qt version set.
Set one in Preferences
Error while building project qtilk
When executing build step 'QMake'
Canceled build.
然后我尝试更改首选项中相应的 Qt 版本，并将鼠标悬停在路径上，我意识到我的 mkspec 未设置： 
然后我尝试通过qmake -query查询qmake：
QT_INSTALL_PREFIX:/
QT_INSTALL_DATA:/usr/local/Qt4.6
QT_INSTALL_DOCS:/Developer/Documentation/Qt
QT_INSTALL_HEADERS:/usr/include
QT_INSTALL_LIBS:/Library/Frameworks
QT_INSTALL_BINS:/Developer/Tools/Qt
QT_INSTALL_PLUGINS:/Developer/Applications/Qt/plugins
QT_INSTALL_TRANSLATIONS:/Developer/Applications/Qt/translations
QT_INSTALL_CONFIGURATION:/Library/Preferences/Qt
QT_INSTALL_EXAMPLES:/Developer/Examples/Qt/
QT_INSTALL_DEMOS:/Developer/Examples/Qt/Demos
**QMAKE_MKSPECS:/usr/local/Qt4.6/mkspecs**
QMAKE_VERSION:2.01a
QT_VERSION:4.6.2
QMAKE_MKSPECS似乎在这里设置？
设置我的 mkspec 可以解决我的构建问题吗？我尝试通过输入 export mkspec=macx-g++ 进行设置。不过，mkspec 似乎没有设置任何内容。我洗耳恭听地等待着您的答复。提前致谢。
After installing Qt SDK for Open Source C++ development on Mac OS by following the respective steps
Note for the binary package: If you have the binary package, simply
double-click on the Qt.mpkg and follow the instructions to install Qt.
Yes, that is all I have done to install Qt on MacOsX. Everything was going fine, until I run a sample application, of which compile output resulted in:
No valid Qt version set.
Set one in Preferences
Error while building project qtilk
When executing build step 'QMake'
Canceled build.
Then I tried to change the respective Qt version in Preferences and I hovered over the Path, I realized my mkspec isn't set:
Then I tried querying qmake by qmake -query:
QT_INSTALL_PREFIX:/
QT_INSTALL_DATA:/usr/local/Qt4.6
QT_INSTALL_DOCS:/Developer/Documentation/Qt
QT_INSTALL_HEADERS:/usr/include
QT_INSTALL_LIBS:/Library/Frameworks
QT_INSTALL_BINS:/Developer/Tools/Qt
QT_INSTALL_PLUGINS:/Developer/Applications/Qt/plugins
QT_INSTALL_TRANSLATIONS:/Developer/Applications/Qt/translations
QT_INSTALL_CONFIGURATION:/Library/Preferences/Qt
QT_INSTALL_EXAMPLES:/Developer/Examples/Qt/
QT_INSTALL_DEMOS:/Developer/Examples/Qt/Demos
**QMAKE_MKSPECS:/usr/local/Qt4.6/mkspecs**
QMAKE_VERSION:2.01a
QT_VERSION:4.6.2
QMAKE_MKSPECS seems to be set here??
Will setting my mkspec solve my building problem? I tried setting by typing export mkspec=macx-g++. Still, mkspec seems not to be set to anything. I am all ears waiting for your answers. Thanks in advance.
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要设置正确的规格，请使用：
qmake -spec max-g++
To set the correct spec, use:
qmake -spec max-g++