github/spec-kit · error · PresetValidationError

Missing required field: {field}

Error message

Missing required field: {field}

What it means

Error "Missing required field: {field}" thrown in github/spec-kit.

Source

Thrown at src/specify_cli/presets/__init__.py:310

            raise PresetValidationError(
                f"Manifest is not valid UTF-8: {path} ({e.reason} at byte {e.start})"
            )
        except OSError as e:
            raise PresetValidationError(f"Could not read manifest {path}: {e}")
        if data is None:
            return {}
        if not isinstance(data, dict):
            raise PresetValidationError(
                f"Manifest must be a YAML mapping, got {type(data).__name__}: {path}"
            )
        return data

    def _validate(self):
        """Validate manifest structure and required fields."""
        # Check required top-level fields
        for field in self.REQUIRED_FIELDS:
            if field not in self.data:
                raise PresetValidationError(f"Missing required field: {field}")

        # Validate schema version
        if self.data["schema_version"] != self.SCHEMA_VERSION:
            raise PresetValidationError(
                f"Unsupported schema version: {self.data['schema_version']} "
                f"(expected {self.SCHEMA_VERSION})"
            )

        for section in ("preset", "requires", "provides"):
            if not isinstance(self.data[section], dict):
                raise PresetValidationError(
                    f"Invalid {section}: expected a mapping"
                )

        # Validate preset metadata
        pack = self.data["preset"]
        # Check presence AND type: the format/version checks below feed these
        # values straight to ``re.match`` and ``packaging.Version``, both of

View on GitHub (pinned to bf88c9f9a8)

Solutions

1. Add the missing required field to the preset manifest.

When it happens

Trigger: Thrown at src/specify_cli/presets/__init__.py:310 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of github/spec-kit@bf88c9f9a8 (2026-08-14). Data as JSON: /api/errors/5d35234a1020cc6f. Report an issue: GitHub.