"The remote CMake executable cannot write to the local build directory" when trying to debug with Boot to Qt on macOS

macOS + Boot to Qt

prerequisites: Docker Desktop

Steps to reproduce:

Install Boot to Qt toolchain and Qt Creator 17

Add device to QtCreator via 'Devices'

Open a Qt Quick application and set a breakpoint to main.cpp

Check from 'Devices' -> 'Docker Image' -> 'Paths to mount' is not too deep in the directory tree. E.g. if the application is e.g. in /Users/user/RTA/quickapp, the mount path is not /Users/user/RTA/MyFancyBootToQtInstallationPath.

Build the application and start debugging

Expected result: Debugger gets started and hits the set breakpoint

Actual result: Debugger does not necessarily start and a dialog saying:

Found some build errors in the current task. Do you want to ignore them?

and Issues tab shows:

The remote CMake executable cannot write to the local build directory.

See the screenshot attached.

Reproduces randomly.