unrecognized_error_code

'{0}' isn't a recognized diagnostic code.

The analyzer produces this diagnostic when the analyzer/errors section in an analysis options file contains a diagnostic code that is not valid.

The following code produces this diagnostic because the diagnostic implementation_import isn't defined:

// %uri="analysis_options.yaml"
analyzer:
  errors:
    annotate_overrides: error
    implementation_import: warning

If the diagnostic being specified has a different name, then replace the name:

// %uri="analysis_options.yaml"
analyzer:
  errors:
    annotate_overrides: error
    implementation_imports: warning

If there is no diagnostic, then remove the name:

// %uri="analysis_options.yaml"
analyzer:
  errors:
    annotate_overrides: error