The error “unable to support jammy” typically occurs when trying to add an APT repository that does not have packages available for the Ubuntu Jammy (22.04) release. This can happen if the repository maintainer has not yet provided support for this Ubuntu version.Documentation Index
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Fix
To work around this issue, copy theapt_pkg shared object file from the existing Python installation to a more generic name that APT can recognize:
Check your actual Python version by running
python3 --version and adjust the filename accordingly (e.g., cpython-311 for Python 3.11).