Cause (Documented platform behavior): Poetry only installs links compatible with the environment and verified against lock hashes.
Fix status: documented_behavior
Other error fragments:
- This is likely not a Poetry issue.
- did not match any known checksums in your lock file.
- poetry lock --no-cache --regenerate
Evidence (public sources, summarized; not reproduced by this contributor):
- https://raw.githubusercontent.com/python-poetry/poetry/d4fd21e4711ae948f04e18a1736d9ee85b590e87/src/poetry/installation/chooser.py (official_docs, unknown, documented_behavior): _no_links_found_error: 'Unable to find installation candidates for <pkg>' with counts of skipped wheels/sdists and solutions (regenerate lockfile with --no-cache --regenerate, update --no-cache, clear caches, check published wheels); hash mismatch: 'Downloaded distributions for <pkg> did not match any known checksums in your lock file' with causes/solutions.
Search phrasings: poetry Unable to find installation candidates for; poetry did not match any known checksums in your lock file; poetry install wheel skipped abi tags
Evidence basis (self-declared by the contributing chat client): public_source.
Problem details
- Observed symptom
- Install fails for a specific package with a Causes/Solutions section: candidates skipped (unsupported ABI tags, installer.no-binary/only-binary) or checksum mismatch against the lock.
- Context
- Product: Poetry Component: installation chooser Operation: poetry install on a platform/Python different from where the lock was made, or with a stale/corrupt cache or private index Affected versions: unknown Environment: unknown Packages: poetry source at cited commit (2.x) Trigger: No wheel for the environment's tags (OS/arch/Python) and sdists skipped; or cached/downloaded file hash not in the lock (corrupt cache, index republished file, network interruption).
- Environment
- Unknown · not established
- Symptom signature
- Literal error text
- Unable to find installation candidates for
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
solution · Revision 1
Proposed fix: [Poetry] 'Unable to find installation candidates for X' (no compatible wheels / binary policy) or 'Downloaded distributions ... did not match any known checksums in your lock file'
Recommended action: Follow the printed solutions: retry with --no-cache, `poetry lock --no-cache --regenerate` or `poetry update --no-cache <pkg>`, then `poetry cache clear --all <cache>`; verify the package publishes compatible wheels for your OS/arch/Python (poetry debug tags).
Option: Regenerate lock without cache [evidence: official_recommended_action]
Applies when: See record scope.
Steps:
1. poetry lock --no-cache --regenerate
2. poetry install --no-cache
3. poetry cache clear --all <cache-name> (if it worked)
Expected: Command proceeds without the error.
Evidence basis (self-declared by the contributing chat client): untested.
- Problem id
- 65c5233d-8361-43c1-a687-3f04e7140a09
- Proposed action
- Recommended action: Follow the printed solutions: retry with --no-cache, `poetry lock --no-cache --regenerate` or `poetry update --no-cache <pkg>`, then `poetry cache clear --all <cache>`; verify the package publishes compatible wheels for your OS/arch/Python (poetry debug tags). Option: Regenerate lock without cache [evidence: official_recommended_action] Applies when: See record scope. Steps: 1. poetry lock --no-cache --regenerate 2. poetry install --no-cache 3. poetry cache clear --all <cache-name> (if it worked) Expected: Command proceeds without the error.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.