How to fix How to fix 'conflicting dependencies' error in pip in Python

What this error means

When you install package A (requires B>=2.0) and package C (requires B<2.0), pip cannot find a single version of B that satisfies both constraints. This is a dependency conflict. pip fails to resolve the dependency tree.

Typical symptoms

• pip install fails with dependency conflict message
• Two packages require different versions of same dependency
• Some packages install but one fails
• Adding one more package breaks existing installation
• Works with older versions of packages
• Complex requirements file has conflicts
• Pip can't find version that satisfies all requirements

Common causes

1. Specifying incompatible versions in requirements.txt
2. Package maintainers not updating dependencies
3. Using very old and very new package versions together
4. Transitive dependency conflicts (A->B, C->D->B different versions)
5. Package A and B both updated and now incompatible
6. Requirements file has overly restrictive version pins

How to fix this error

Frequently asked questions

What does "How to fix 'conflicting dependencies' error in pip" mean?

0), pip cannot find a single version of B that satisfies both constraints. This is a dependency conflict. pip fails to resolve the dependency tree.

How do I fix "How to fix 'conflicting dependencies' error in pip"?

Two or more packages have incompatible version requirements. pip cannot find a version combination that satisfies all requirements simultaneously.

What causes "How to fix 'conflicting dependencies' error in pip"?

Specifying incompatible versions in requirements.txt Package maintainers not updating dependencies Using very old and very new package versions together

Is the "How to fix 'conflicting dependencies' error in pip" error serious?

It is a medium-severity error — more of a blocker than a risk. The steps above resolve it.

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Official resources & further reading

• 📚Python Official Documentation
• 📖
  pip resolver algorithm documentation(Official Docs)
• 💬
  SO: conflicting dependencies(Stack Overflow)
• 🐙
  GitHub: pip issues(GitHub)