Error on building project on macOS Big Sur

[Frinor53]

Hi everyone.
I'm trying to build and run this project on Qt Creator IDE. I am on macOS Big Sur (11.4), and I have installed XCode Command Line Tools (not the Xcode IDE). I am using Qt Creator 4.15.2 and Qt 6.1.2.

When trying to run the project I get this error:

Project ERROR: Cannot run compiler '/Library/Developer/CommandLineTools/usr/bin/clang++'. Output:
===================
Apple clang version 12.0.5 (clang-1205.0.22.11)
Target: x86_64-apple-darwin20.5.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
clang: error: no such file or directory: 'Burato/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk'
ignoring nonexistent directory "/Volumes/Riccardo/usr/include/c++/v1"
===================
Maybe you forgot to setup the environment?

and the code won't compile. Since I'm no professional, I don't really get what's happening nor how should I fix this.

Additionally I get also this error:

Error while parsing file /Users/Riccardo/Desktop/Qt/Manager/LightsManager/LightsManager_v2.pro. Giving up.

Thanks in advance for any help.

[Frinor53]

Solved!

I just deleted the .qmake.stash file.

Huge waist of time though...

[SGaist]

Hi,

How exactly did you install them ?

[Frinor53]

Well, I installed the Command Line Tools on mac via Terminal, and Qt Creator with the online installer.

If it can be of any use, this line

'Burato/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk'

refers to the Xcode app on a Volume which has the complete name of 'Riccardo Burato' (it is an external hard disk).

Before installing the Command Line Tools, I used

xcode-select -s

to set the source of the command line tools to an Xcode app that I had on that volume 'Riccardo Burato'.

[SGaist]

You are talking in the past tense, did you remove some stuff ?
Changed things with regards to Xcode ?

[Frinor53]

My current setup is with only Command Line Tools on my Mac.

Months ago, instead, I was using the entire Xcode IDE app to compile the qt application. This Xcode app was located in the external hard drive, that I am no longer using.

[SGaist]

Your command line installation is configured to use it hence the error you are seeing.

[Frinor53]

No, it is not and I'll tell you why.

If I run

xcode-select -p

I get

/Library/Developer/CommandLineTools

And if run a .c file to compile with clang I get no errors. It must be something inside Qt Creator.

Additionally, I created a new user account on my mac, and Qt builds and runs everything without a problem! Are there any settings in Qt I should check?

[Frinor53]

Solved!

I just deleted the .qmake.stash file.

Huge waist of time though...

[SGaist]

I forgot about that one !

It has also bitten me on several occasions.

Glad you found out and thanks for sharing :-)