gulp serve ends with syntax error

[ngKisor]

gulp serve ends with a syntax error on node modules/keypress/index.js with an invalid number events.js:163 throw er; // Unhandled 'error' event ^ SyntaxError: /home/kisor/OnGoingProjects/hotspot/hotspot_api/server/node_modules/keypress/index.js: Invalid number (374:30) 372 | var s = key.sequence; 373 | var b = s.charCodeAt(3);

374 | key.x = s.charCodeAt(4) - 040; | ^ 375 | key.y = s.charCodeAt(5) - 040; 376 | 377 | key.scroll = 0;