Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript

Posted by Jieying Tham
Jieying Tham
16,491 Points

TypeError: Cannot read property 'prototype' of undefined

I got this error

Vidar Martinsen
Vidar Martinsen
6,680 Points
Vidar Martinsen
Vidar Martinsen
6,680 Points

Could you provide the code that are making this error?

1 Answer

Jieying Tham
Jieying Tham
16,491 Points
Jieying Tham
Jieying Tham
16,491 Points

Hi, I didn't make any changes to the code. All I did was npm install then gulp.

The error shows after that

C:\Users\Jieying\code\Tutorial\advanced-gulp-example\node_modules\karma\node_modules\socket.io\lib\store.js:35
Store.prototype.__proto__ = EventEmitter.prototype;
                                        ^

This was the error message