python install_error ai_generated true

ERROR: Cannot install foo==1.0 and bar==2.0 because these package versions have conflicting dependencies. The conflict is caused by: The user requested foo==1.0 bar 2.0 depends on foo<1.0

ID: python/pip-resolution-impossible-conflicting-dependencies

Also available as: JSON · Markdown · 中文
80%Fix Rate
88%Confidence
0Evidence
2024-04-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.8 active — — —
3.9 active — — —
3.10 active — — —
3.11 active — — —
3.12 active — — —

Root Cause

The dependency resolver cannot find a set of versions satisfying all constraints simultaneously.

generic

中文

依赖解析器无法找到同时满足所有约束的版本集合。

Workarounds

  1. 85% success 
    Relax version pins: `pip install foo bar` without exact versions, or use `pip install 'foo>=1.0' 'bar<2.0'`.
  2. 80% success 
    Use a resolver like `pip-compile` from pip-tools to generate a consistent set.

Dead Ends

Common approaches that don't work:

  1. 90% fail

    Does not resolve version conflicts; pip still refuses.

  2. 60% fail

    Skips dependencies, leading to runtime ImportErrors later.