usebruno/bruno · error · Error

Failed to parse the file – ensure it is valid JSON or YAML

Error message

Failed to parse the file – ensure it is valid JSON or YAML

What it means

Error "Failed to parse the file – ensure it is valid JSON or YAML" thrown in usebruno/bruno.

Source

Thrown at packages/bruno-app/src/components/Sidebar/ImportCollection/FileTab.js:32

  const text = await file.text();

  // Handle WSDL files - return as plain text
  if (file.name.endsWith('.wsdl') || file.type === 'text/xml' || file.type === 'application/xml') {
    return text;
  }

  try {
    if (file.type === 'application/json' || file.name.endsWith('.json')) {
      return JSON.parse(text);
    }

    const parsed = jsyaml.load(text, { schema: jsyaml.JSON_SCHEMA });
    if (typeof parsed !== 'object' || parsed === null) {
      throw new Error();
    }
    return parsed;
  } catch {
    throw new Error('Failed to parse the file – ensure it is valid JSON or YAML');
  }
};

const FileTab = ({
  setIsLoading,
  handleSubmit,
  setErrorMessage
}) => {
  const [dragActive, setDragActive] = useState(false);
  const fileInputRef = useRef(null);
  const { theme } = useTheme();

  const acceptedFileTypes = [
    '.json',
    '.yaml',
    '.yml',
    '.wsdl',
    '.zip',

View on GitHub (pinned to 9bdd81c7bd)

Solutions

1. Open the file in an editor and validate its JSON/YAML syntax.
2. Fix syntax errors (trailing commas, bad indentation) and retry the import.

When it happens

Trigger: Thrown at packages/bruno-app/src/components/Sidebar/ImportCollection/FileTab.js:32 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of usebruno/bruno@9bdd81c7bd (2026-08-13). Data as JSON: /api/errors/ab8dcc9848ee0584. Report an issue: GitHub.