Unknown unexpected token error

Warning: Esprima failed to parse [some-path-to-js]
Error: Line 62: Unexpected token ...

The js file contains these lines and there is no bug in the target project:

  60:  let isIgnored = () => false;
  61:  if (opts.ignore) {
  62:  const ignoreOpts = { ...options, ignore: null, onMatch: null, onResult: null };
  63:  isIgnored = picomatch(opts.ignore, ignoreOpts, returnState);
  64:  }


