回帖：彩阳:Qt Creator 4.0.0下再次无法使用搜狗输入法了。目前还没有比较好的方法能够解决这个问题，看来还要询问一下fcitx团队看如何得到解决了。 (2016-05-21 11:06) 
hdp@hdp-virtual-machine:~/fcitx-qt5$ make
[0%] Built target fcitx-scan-addons.target
[0%] Built target fcitx-modules.target
[3%] Automatic MOC for target FcitxQt5DBusAddons
[3%] Built target FcitxQt5DBusAddons_autogen
[6%] Linking CXX shared library libFcitxQt5DBusAddons.so
CMakeFiles/FcitxQt5DBusAddons.dir/fcitxqtconnection.cpp.o: In function `FcitxQtConnectionPrivate::FcitxQtConnectionPrivate(FcitxQtConnection*)':
fcitxqtconnection.cpp:(.text+0x2bb): undefined reference to `vtable for FcitxQtConnectionPrivate'
CMakeFiles/FcitxQt5DBusAddons.dir/fcitxqtconnection.cpp.o: In function `FcitxQtConnectionPrivate::~FcitxQtConnectionPrivate()':
fcitxqtconnection.cpp:(.text+0x4e4): undefined reference to `vtable for FcitxQtConnectionPrivate'
collect2: error: ld returned 1 exit status
make[2]: *** Error 1
make[1]: *** Error 2
make: *** Error 2
hdp@hdp-virtual-machine:~/fcitx-qt5$
为什么会出现这种情况呢？