make ERROR : Parse error at "IID"

[NewtMa]

I have done the following command

sudo apt install cmake extra-cmake-modules fcitx-libs-dev

I have Qt5.9.5 on my Ubuntu1804, the PATH variable is

PATH=/usr/lib/x86_64-linux-gnu/qt5/bin:$PATH

and make output is

[  0%] Built target fcitx-scan-addons.target
[  0%] Built target fcitx-modules.target
[  1%] Automatic MOC for target FcitxQt5DBusAddons
[  1%] Built target FcitxQt5DBusAddons_autogen
[ 14%] Built target FcitxQt5DBusAddons
[ 16%] Automatic MOC for target FcitxQt5WidgetsAddons
[ 16%] Built target FcitxQt5WidgetsAddons_autogen
[ 26%] Built target FcitxQt5WidgetsAddons
[ 27%] Automatic MOC for target fcitx-qt5-gui-wrapper
[ 27%] Built target fcitx-qt5-gui-wrapper_autogen
[ 36%] Built target fcitx-qt5-gui-wrapper
[ 38%] Automatic MOC for target fcitx-quickphrase-editor5
[ 38%] Built target fcitx-quickphrase-editor5_autogen
[ 54%] Built target fcitx-quickphrase-editor5
[ 69%] Built target fcitx-compile-mo.target
[ 70%] Automatic MOC for target fcitxplatforminputcontextplugin

AutoMoc subprocess error
------------------------
moc failed for
  "/home/newtma/qt_project/fcitx-qt5/platforminputcontext/main.h"

Command
-------
/usr/lib/qt5/bin/moc -I/home/newtma/qt_project/fcitx-qt5/platforminputcontext/fcitxplatforminputcontextplugin_autogen/include -I/usr/include/x86_64-linux-gnu/qt5/QtGui/5.9.5 -I/usr/include/x86_64-linux-gnu/qt5/QtGui/5.9.5/QtGui -I/usr/include/x86_64-linux-gnu/qt5/QtCore/5.9.5 -I/usr/include/x86_64-linux-gnu/qt5/QtCore/5.9.5/QtCore -I/home/newtma/qt_project/fcitx-qt5/platforminputcontext -I/usr/include/x86_64-linux-gnu/qt5 -I/usr/include/x86_64-linux-gnu/qt5/QtCore -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -I/usr/include/x86_64-linux-gnu/qt5/QtGui -I/usr/include/x86_64-linux-gnu/qt5/QtDBus -I/usr/include -DQT_CORE_LIB -DQT_DBUS_LIB -DQT_GUI_LIB -DQT_NO_DEBUG --include /home/newtma/qt_project/fcitx-qt5/platforminputcontext/fcitxplatforminputcontextplugin_autogen/moc_predefs.h -o /home/newtma/qt_project/fcitx-qt5/platforminputcontext/fcitxplatforminputcontextplugin_autogen/EWIEGA46WW/moc_main.cpp /home/newtma/qt_project/fcitx-qt5/platforminputcontext/main.h

Output
------
/home/newtma/qt_project/fcitx-qt5/platforminputcontext/main.h:32: Parse error at "IID"

platforminputcontext/CMakeFiles/fcitxplatforminputcontextplugin_autogen.dir/build.make:57: recipe for target 'platforminputcontext/CMakeFiles/fcitxplatforminputcontextplugin_autogen' failed
make[2]: *** [platforminputcontext/CMakeFiles/fcitxplatforminputcontextplugin_autogen] Error 1
CMakeFiles/Makefile2:963: recipe for target 'platforminputcontext/CMakeFiles/fcitxplatforminputcontextplugin_autogen.dir/all' failed
make[1]: *** [platforminputcontext/CMakeFiles/fcitxplatforminputcontextplugin_autogen.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

[NewtMa]

make command -I directories are wrong

[NewtMa]

I installed Qt5.9.0 from .run installer and exported the PATH variable, and still not working

[wengxt]

I assume you're missing private qt header or sth? I don't have any problem on building it.

Platform input context requires private qt header.