Qt 5.2 & iOS: "Nothing to be done"

Question

I am currently trying to get a simple widget based "hello world" iOS application getting built with "Qt 5.2 for iOS". However, when using QtCreator to compile a freshly created test application with the iphonesimulator-clang kit it just says "there is nothing to be done for first", and no binary file is created. I have spent a few hours already to track this down, but can't figure out what I have configured wrong.

I am using a MacBook Air with OS X 10.8.5, Qt 5.2.0, QtCreator 3.0.0 and XCode 5.0.2 (in case this matters). There is also Qt 4.8.5 installed on this machine, this this version is what I used for production purposes.

Some more things to mention:

• When running qmake from QtCreator it gives a warning "The version of XCode installed on this system is not recognized"
• The iOS sample applications shipped with 5.2 do build and run correctly
• When deleting the ".pro.user" file of such a shipped sample, which means that I need to reconfigure the project in QtCreator again afterwards (selecting the kit), the sample shows the same problems as my freshly created test app: qmake will warn about the XCode version and the make step will not do anything.

Any hints are more than welcome!

Answer 1

In case other people run into the same problem - I finally tracked it down: Installing the latest XCode command line tools solved the problem.

When initially installing "Qt 5.2 for iOS" I also updated to the latest XCode version via the App Store. I guess that the XCode update did not update the command line tools (which I already had installed before), and for some reason Qt did then silently fail on this.