I install qt-creator with rosqtcplugin follow this tutorial https://ros-industrial.github.io/ros_qtc_plugin/

it's qtcreator 4.5.1

however when I want to use document(by click the left button "help",or use F1 on my keyboard),it just crash. and I also can not use reflactor to change the variable's names(use right click or keyboard shortcut).

is it common? or I need to find another way to use qtcreator?