[Bug 1135336] Re: If qmake for both Qt 4 and Qt 5 are installed, Qt Creator does not detect system Qt 5 correctly and Qt Creator configuration gets broken

[Timo Jyrinki]

** Changed in: qtcreator (Ubuntu)
     Assignee: (unassigned) => Timo Jyrinki (timo-jyrinki)

** Description changed:

  On a clean user like Guest, for some reason Qt Creator only detects Qt 4
  and not Qt 5, if both are installed. If qt4-qmake is removed, Qt 5 is
  automatically detected.
  
- If having the problem, multiple things in Qt Creator configuration are
- broken. As a first step one needs to go Tools -> Options -> Qt Versions
- -> Add... and add the /usr/bin/qmake which then identifies itself as Qt
- 5.0.1.
+ Symptoms of having the problem include:
+ - Not being able to "Run" QML projects
+ - Getting QML Import complaints when going to the Design tab
+ - Missing Ubuntu UI wizard options (this can also be cause by not having the special package ubuntu-qtcreator-plugins from ubuntu-sdk-ppa installed)
+ 
+ If having the problem, multiple things in Qt Creator configuration may
+ be broken. You can either try to fix the problems manually, or remove
+ the qt4-qmake package and reset Qt Creator configuration.
+ 
+ With the manually fixing settings, as a first step one needs to go Tools
+ -> Options -> Qt Versions -> Add... and add the /usr/bin/qmake which
+ then identifies itself as Qt 5.0.1.
  
  If still having problems, one needs to check the Kits tab as well to
  double-check that the "Desktop (default)" has Qt version "Qt 5.0.1
  (System)" set. Not having it set can for example result in Build -> Run
  being greyed out when having qmlproject like lp:~dpm/+junk/ubuntu-app-
  dev-cookbook opened.
  
  If the Build -> Run is still greyed out after this when you've a
  CurrencyConverter.qmlproject open from above link, but Tools -> Options
  settings seem fine, open the "Projects" from the left pane in Qt
  Creator. Check that you have a kit defined (use the "Add Kit" dropdown
  if not), after which you should have the Desktop -> Run tab filled with
  "Run configuration: "QML Scene" for example. Now the Run should work.
  
  Also the QML Import Path might be broken if qt4-qmake package was
  installed during the time of first run of Qt Creator. This is shown in
  the Design tab from the left pane not functioning for Ubuntu UI
  projects. TODO: how to set the QML Import Path from the UI without
  resetting all configuration?
  
- Finally, if you do want to reset all the Qt Creator configuration,
- remove the files .config/Trolltech.conf .config/Qt*. If you want Qt 5
- auto-detection then on the next run, remove qt4-qmake package for now.
+ If you do want to reset all the Qt Creator configuration instead, quit
+ Qt Creator and remove the files .config/Trolltech.conf .config/Qt*. If
+ you don't have the qt4-qmake installed anymore, starting Qt Creator now
+ should have everything functional.

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https://bugs.launchpad.net/bugs/1135336

Title:
  If qmake for both Qt 4 and Qt 5 are installed, Qt Creator does not
  detect system Qt 5 correctly and Qt Creator configuration gets broken

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