I have the spdx-tools installed, but I don't need the BOM so I will turn this 
off.

Scott

-----Original Message-----
From: Alexandru Croitor <[email protected]> 
Sent: Tuesday, April 7, 2026 02:24
To: Scott Bloom <[email protected]>
Cc: [email protected]
Subject: Re: [Development] Problems building 6.11.0 on windows

Hi Scott,

The 
  'WARNING: Qt WebEngine And Qt Pdf SBOM generation will be skipped due to 
missing dependencies. ' 
warning is shown when sbom generation is enabled, but one of the python 
dependencies is missing, specifically the spdx-tools package.

If you don't care about SBOMs, you can configure Qt with -no-sbom, or 
-DQT_GENERATE_SBOM=OFF, that should silence the warning.

Otherwise you can install the dependency with C:/Qt/buildarea/python/python.exe 
-m pip install spdx-tools.

I've created an issue to track improving the warning message and docs about 
this situation:

https://qt-project.atlassian.net/browse/QTBUG-145604

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