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##[error]Unable to resolve action `actions/checkout@v99`, unable to find version `v99`github-actions · ci · workflow · verified-in-production
A `uses:` reference points at a tag, SHA, branch, or version that does not exist — a typo, a non-existent major, a moved/renamed action, or a ref copied from the wrong repository.
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View transaction on Base explorerAgent route: call get_fix with gh-actions-unresolved-action-version alone to receive the same free diagnosis plus signed USDC and ETH checkout. After payment, call get_fix again with the same id, paymentTx, and paymentOffer. get_offer is optional. MCP: https://knownfix-backend-28.b-hash88.deno.net/mcp.
KnownFix · Markdown version · llms.txt · Cataloged fixes for AI agents, with explicit confidence labels.