Qt xcode build fails with "PhaseScriptExecution" error.

[inkfil]

Hello Community,
I have an iPadOs app build using Qt, it was building an IPA for me using Qt (version 5.12.11).
For Qt (version 6.2.4) [ see below specification for details ], I get following build error.

```
The following build commands failed:
    PhaseScriptExecution Qt\ Preprocessors /Users/ronakjain/Library/Developer/Xcode/DerivedData/Focus-bsobaqesfbldlgbnobwpdrgynotw/ArchiveIntermediates/Focus/IntermediateBuildFilesPath/Focus.build/Release-iphoneos/Qt\ Preprocess.build/Script-7EF0942E79C014DCEC8976BC.sh (in target 'Qt Preprocess' from project 'Focus')
(1 failure)
```

Does migrating from QT 5X to QT 6X has any changes in build? since both QT uses qmake (version 3.1)
Is this Qmake/Qt specific error or Xcode specific error?

Details:
Qt version: 6.2.4
qmake version: 3.1
MacOs version: 12.6 (Monterey, M1 2020)
Xcode version: 14.0.1 (14A400)
xcodebuild version: 14.0.1 (14A400)

Thanks
Ronak Jain.