(C++) My context-sensitive help is missing. How to fix this?

 

Install the documentation.

 

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sudo apt-get install qt4-doc

 

Check if the .qch (Qt Creator Help) files are present.

 

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richel@richel-K73E:~$ locate *.qch /usr/lib/qt4/examples/help/contextsensitivehelp/doc/wateringmachine.qch /usr/lib/qt4/examples/help/simpletextviewer/documentation/simpletextviewer.qch /usr/share/qt4/doc/qch/assistant.qch /usr/share/qt4/doc/qch/designer.qch /usr/share/qt4/doc/qch/linguist.qch /usr/share/qt4/doc/qch/qmake.qch /usr/share/qt4/doc/qch/qml.qch /usr/share/qt4/doc/qch/qt.qch /usr/share/qtcreator/doc/qtcreator.qch

 

Then do '(main menu item) Tools | (submenu item) Options | (list item) Help | (tab) Documentation | (button) Add', and add the qch files.