Question

这个问题的所有解决方案都归结为

在CONFIG += c++11文件中使用.pro或使用QMAKE_CXXFLAGS += -std=c++11。不幸的是，这些解决方案都不适合我。我仍然得到错误。我必须补充说，我必须将此项目从Linux Ubuntu 16.04 LTS计算机移动到Mac macOS Sierra 10.12计算机。移动后错误开始发生。正如您将从输出中看到的那样，我正在运行Qt 5.6.2

以下是我的.pro文件

的内容

#-------------------------------------------------
#
# Project created by QtCreator 2016-10-05T10:30:33
#
#-------------------------------------------------
QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = gui
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

CONFIG += c++11

QMAKE_CXXFLAGS += -ferror-limit=1

这是运行和失败的实际命令：

/Applications/Xcode.app/Contents/Developer/usr/bin/g++ -c -pipe -ferror-limit=1 -g -std=gnu++0x -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk -mmacosx-version-min=10.7 -Wall -W -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../gui -I. -I/usr/local/Cellar/qt5/5.6.2/lib/QtWidgets.framework/Headers -I/usr/local/Cellar/qt5/5.6.2/lib/QtGui.framework/Headers -I/usr/local/Cellar/qt5/5.6.2/lib/QtCore.framework/Headers -I. -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/usr/local/Cellar/qt5/5.6.2/mkspecs/macx-g++ -F/usr/local/Cellar/qt5/5.6.2/lib -o main.o ../gui/main.cpp
In file included from ../gui/main.cpp:1:
In file included from ../gui/mainwindow.h:4:
In file included from /usr/local/Cellar/qt5/5.6.2/lib/QtWidgets.framework/Headers/QMainWindow:1:
In file included from /usr/local/Cellar/qt5/5.6.2/lib/QtWidgets.framework/Headers/qmainwindow.h:37:
In file included from /usr/local/Cellar/qt5/5.6.2/lib/QtWidgets.framework/Headers/qwidget.h:38:
In file included from /usr/local/Cellar/qt5/5.6.2/lib/QtCore.framework/Headers/qobject.h:41:
/usr/local/Cellar/qt5/5.6.2/lib/QtCore.framework/Headers/qstring.h:756:55: error: no type named 'u16string' in namespace 'std'
    static inline QString fromStdU16String(const std::u16string &s);
                                                 ~~~~~^
fatal error: too many errors emitted, stopping now [-ferror-limit=]

这是输出 /Applications/Xcode.app/Contents/Developer/usr/bin/g++ --version

Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 8.0.0 (clang-800.0.38)
Target: x86_64-apple-darwin16.0.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

在macOS Sierra上的命名空间'std'中没有名为'u16string'的类型

0 个答案: