qmake error: Project ERROR: failed to parse default search paths from compiler output on MacOS Sonoma 14.0 & QT Version 5.15.13

iSolve_Tech

After updating the macOS from 13.4 to 14 we are getting the following error while building mac OSX build.

qmake error: Project ERROR: failed to parse default search paths from compiler output.

We are using QT version 5.15.13 & also we have updated the xcode version to Version 15.0

hskoglund

Hi, I got the same error yesterday and I am still on Ventura 13.5.2.
For me that error ("... failed to parse default search patterns...) started yesterday when my Xcode was updated to version 15.0.

I have Qt 6.5.2.
The error only occurs for projects using qmake (i.e. .pro files).
Projects with CMake still work fine.

hskoglund

Fixed in https://bugreports.qt.io/browse/QTBUG-117225
If you don't wait for Qt 6.5.3 or 5.15.16 you can apply the fix yourself, by editing ~/Qt/6.5.2/macos/mkspecs/features/toolchain.prf
see here

ademmler

hi,

I have applied this patch to /Users/username/Qt/5.15.15/macos/mkspecs/features/toolchain.prf

But I still get the same Error.
Project ERROR: failed to parse default search paths from compiler output
1: error: Error while parsing file

Environment: Ventura 13.5.1 on M1 Macintosh with Qt 5.15.5

ademmler

@ademmler

I have found a solution here (last entry):
https://bugreports.qt.io/browse/QTBUG-117747?jql=project %3D QTBUG AND component %3D "Build tools%3A qmake"

I have now replaced my copy of clang_64/mkspecs/features/toolchain.prf with the one available at https://github.com/qt/qtbase/blob/dev/mkspecs/features/toolchain.prf.

This did the trick and worked for me.

iSolve_Tech

I have replaced toolchain.prf but still getting same error.

hskoglund

Hi, try deleting your <projectname>.pro.user file and restart Qt Creator.

iSolve_Tech

@hskoglund
I have replaced toolchain.prf & also deleted the <projectname>.pro.user file, but still getting same error.

hskoglund

Try updating to Qt 5.15.16
If all else fails, try changing from qmake to CMake.

vmanso

@hskoglund I've had this exact issue after updating to sonoma and the instructions you provided have fixed my issue (at least).

I just manually edited the file and after that projects are compiling again.