This error indicates incorrect syntax in code, often from mismatched brackets or quotes. Reviewing the line number and correcting syntax typically fixes this.

The 'SyntaxError: Unexpected token' error in Node.js occurs when JavaScript encounters an unexpected character that disrupts the expected syntax. This often stems from missing or extra characters like brackets, braces, commas, or quotation marks. To address this, start by examining the error message’s line number, as it indicates where the parser stumbled. However, the actual issue may occur earlier if, for instance, a closing bracket is missing or unmatched. Carefully reviewing the code structure, especially around functions, loops, or object definitions, can reveal where the syntax diverged from what’s expected. If the code involves template literals or nested structures, missing backticks or curly braces can cause this error, so double-check the start and end of all nested structures. In cases where JSON data is involved, such as when parsing JSON strings with JSON.parse, be mindful that JSON requires double quotes for keys and values; using single quotes or trailing commas will cause unexpected token errors. Additionally, ESLint or Prettier, if configured in your editor, can help catch syntax errors in real-time, streamlining debugging for syntax-related issues.