good morning,

i tried to update all packages from AIX Linux toolbox on local repository. But i got this error messages:

Error:
 Problem: package python3-setuptools-rust-1.11.1-1.noarch requires python3.12-setuptools-rust = 1.11.1-1, but none of the providers can be installed
  - cannot install the best update candidate for package python3-setuptools-rust-0.12.1-2.noarch
  - nothing provides libunwind.a(libunwind.so.1) needed by python3.12-setuptools-rust-1.11.1-1.noarch
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

Before the update all repositories are synced with IBM.

# /opt/freeware/bin/dnf install unwind
Last metadata expiration check: 0:52:19 ago on December 22, 2025 at 11:34:26 AM MEZ.
No match for argument: unwind
Error: Unable to find a match: unwind
# /opt/freeware/bin/dnf install libunwind
Last metadata expiration check: 0:52:25 ago on December 22, 2025 at 11:34:26 AM MEZ.
No match for argument: libunwind
Error: Unable to find a match: libunwind

Rust based packages requires libunwind library and it comes from libunwind.rte ( a lpp fileset ).  It is not installed by default in AIX 7.2. We are working with the relevant team to make it available by default in the future updates of AIX 7.2.
Right now, one can get the fileset from https://www.ibm.com/support/pages/fix-list-xl-cc-runtime-aix. After installation, run "updtvpkg" to update the rpm database and then try dnf again.