The second failure ninja: build stopped: subcommand failed. is a direct successor of the first error. Fix the first error, and the second will disappear. the file does exist and is in the include directory Can you tell us the path to this directory? According to the compiler command line, your compiler searches in the following directories: -I/Users/jamesmartin/sourceCode/C++/qt/QTCurvesCPP2/build/Desktop_arm_darwin_generic_mach_o_64bit-Debug/QTCurvesCPP2_autogen/include -isystem /Applications/qt/6.7.2/macos/lib/QtCore.framework/Headers -iframework /Applications/qt/6.7.2/macos/lib -isystem /Applications/qt/6.7.2/macos/mkspecs/macx-clang -isystem /Applications/qt/6.7.2/macos/include -isystem /Applications/qt/6.7.2/macos/lib/QtWidgets.framework/Headers -isystem /Applications/qt/6.7.2/macos/lib/QtGui.framework/Headers which seems a bit strange to me as it does not have any source directory in the list. Can you show your CMakeLists.txt?

Don't forget to mark the thread as solved.

@GiordanoBruno said in Recent project list in Creator is persistent over multiple reinstallation of qt on mac OS: @SGaist hi, thanks for the note. i probably did not restart the system between each and every time i reinstalled. there were a number of power cycles and off periods so it looks like i am missing some file or the cached parameters wander into a file later. not what i would expect even from apple.

Hi For the scalable part. You must use Layouts from the very start. https://doc.qt.io/qt-5/layout.html

@afalsa same here

@cube45 said in How to define initial build options with CMakeLists.txt: How do you publish your app then? 'make install' is your friend.

@aha_1980 This is exactly, not almost, what I was looking for. Thanks a lot!

@hskoglund said in How to analyze a KIT environment variable: Hi, in a .cpp file you can use getenv(), like this: QString target = getenv("TARGET"); Or qEnvironmentVariable which returns a QString.

@rosetter The bug report is QTCREATORBUG-21258

@aha_1980 The funny thing is the comma. I have just tried and windows 10 you can rename a file to hold a ",v" at the end, but this either part of the extension or part of the filename. In the command prompt this command would generate dir >outfile,v a file outfile without the ",v" (comma vi) at the end. All this makes the behaviour really strange and its use very limited, if there one at all.

gcc: gcc version 6.4.0 20170820 (Debian 6.4.0-4) gdb: GNU gdb 7.11.1 Program code: #include <iostream> using namespace std; int main() { cout << "Hello World!" << endl; return 0; }

Qt Designer is included in Qt sources and works only for UI files. Qt Creator (the IDE) is a separate application and a separate project. You need to install or compile it first, for example from qt.io/downloads. Once you have Qt Creator installer, you need to open the settings, add your Qt Version, then add a so called Kit (which is Qt Version + compiler bundle), and then you are ready to go. If you want to avoid all that hassle, use the Qt installer from the link above - it will install Qt, Qt Creator, and set everything up for you, completely automatically.