KUBB_INPUT_NOT_FOUND: Input not found

Code: KUBB_INPUT_NOT_FOUND Level: error

The file set as input (or passed as kubb generate PATH) could not be read. The OpenAPI adapter checks the path before parsing, so the run stops here instead of failing later with a vague read error.

What happened

Kubb resolves a file input relative to the config file, then confirms the file exists before reading it. This diagnostic fires when nothing is there. URLs skip this check, so a remote spec surfaces its own fetch error instead.

Common causes

• A typo in input, or a path relative to the wrong directory.
• The spec was moved or renamed but the config still points at the old location.
• kubb generate ./spec.yaml ran from a directory where that relative path does not resolve.

How to fix it

• Check the path exists and is readable, then set it as input or pass it as kubb generate PATH.
• Use a path relative to your kubb.config.ts, or an absolute path.
• For a remote spec, set input to the full URL.

Example output

Terminal

[KUBB_INPUT_NOT_FOUND] @kubb/adapter-oas: Cannot read the file set as `input` (or via `kubb generate PATH`): ./petStore.yaml
  fix: Check that the path exists and is readable, then set it as `input` or pass it as `kubb generate PATH`.
  see: https://kubb.dev/docs/5.x/reference/diagnostics/kubb-input-not-found

See also

• Configuration
• kubb generate
• Diagnostics reference