python install_error ai_generated partial

ERROR: Cannot install foo==1.0 and bar==2.0 because these package versions have conflicting dependencies. ResolutionTooDeep: 2000000

ID: python/pip-resolution-too-deep

Also available as: JSON · Markdown · 中文
80%Fix Rate
84%Confidence
0Evidence
2024-05-08First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

The backtracking resolver exceeded its search depth because two or more packages require mutually exclusive versions of a shared dependency, creating an unsatisfiable constraint graph.

generic

中文

回溯解析器超过其搜索深度，因为两个或多个软件包需要共享依赖项的互斥版本，形成不可满足的约束图。

Workarounds

  1. 85% success 
    # Inspect the conflict
pip install --dry-run foo==1.0 bar==2.0
# Relax pins to compatible ranges
pip install 'foo>=1.0,<2' 'bar>=2.0,<3'
  2. 80% success 
    pip install uv
uv pip install foo==1.0 bar==2.0

Dead Ends

Common approaches that don't work:

  1. 85% fail

    The constraint set is unsatisfiable; more rounds just burns CPU before failing again.

  2. 70% fail

    Skips dependency installation, leaving imports broken at runtime.