Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
Error:
 Problem: package python3-sphinx_rtd_theme-1.1.1-2.fc38.noarch from copr_base requires (python3.11dist(sphinx) < 6~~ with python3.11dist(sphinx) >= 1.6), but none of the providers can be installed
  - cannot install both python3-sphinx-1:5.3.0-3.fc38.noarch from fedora and python3-sphinx-1:7.2.6-5.fc38.noarch from copr_base
  - cannot install the best candidate for the job
But `python3-sphinx_rtd_theme` from `copr_base` seems to require non-installable dependencies in buildroot.