pip "No matching distribution found for X" in CI

By Kaveh Alemi·Latchkey

pip contacted its indexes but none returned a distribution that matches the requested name and constraints. This is the final line that follows most resolution failures.

What this error means

pip ends with "ERROR: No matching distribution found for X". The package name may be misspelled, private, yanked, or unavailable for the runner's Python or OS.

ERROR: Could not find a version that satisfies the requirement internal-utils (from versions: none)
ERROR: No matching distribution found for internal-utils

Common causes

The name is misspelled or the project is private

"from versions: none" means the index has no project by that name at all - a typo, or a private package not on the configured index.

No distribution matches this Python or platform

The project exists but ships no wheel or sdist compatible with the runner's interpreter or OS, so pip sees nothing installable.

How to fix it

Confirm the exact project name

1. Search the index for the real distribution name (it may differ from the import name).
2. Fix the typo in requirements, or add the private index that hosts it.
3. Re-run and confirm pip now lists candidate versions.

pip install --index-url https://pypi.org/simple internal-utils

Match the interpreter the package supports

If only "none" appears for your interpreter, pin the CI Python to a version the package publishes wheels for.

- uses: actions/setup-python@v5
  with:
    python-version: '3.12'

How to prevent it

• Verify distribution names against the index, not the import name.
• Configure private indexes explicitly so internal packages resolve.
• Keep CI Python aligned with the wheels your dependencies publish.

Frequently asked questions

Related guides

References

• Python documentation
• pip documentation
• GitHub Actions documentation