This bug has been solved already but this report is created later for documentation purpose.

• steps to reproduce:
  eg: 1) # pacman -Syyu # try me first (systemd)
  2) # pacman -S qtcreator
  3) $ qtcreator

• expected result:
  Qt Creator successfully installed and can run normally with its usual excellent, sophisticated all-in-one features to program C++, design user interface, compile and built projects, and read the Qt API documentation.

• actual result:
  Qt Creator failed to install because of a hard dependency of a package version, that is, clang=11.x.x.

• status:
  This bug has been solved.

• solution:
  Parabola Team has been updated the Qt Creator package so it can be installed with more recent version of clang (clang=13) that is available on Parabola at the moment. Parabola Team also has been added a latest version Qt Creator, version 6, into libre-testing repository.

• Reference:
  - Qt Creator 5 update, https://git.parabola.nu/abslibre.git/commit/libre/qtcreator?id=77324f61093de92efba9ca35499c3516fe2c9ac2
  - Qt Creator 6 new package, https://git.parabola.nu/abslibre.git/commit/?id=01c50ca0349c3a48da9ff931360a793af6af178c
  - Mailing list message, https://lists.parabola.nu/pipermail/assist/2021-December/001612.html (SOLVED)

Thank you, Parabola Community.

Sincerely yours,

Malsasa