Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

TypeError: undefined is not an object (evaluating 'this._callbacks')

See original GitHub issue

Unfortunately we don’t have a ton of info on this but some of our users (looks like a couple users repeatedly across the span of the past few months) have been getting an unhandled javascript error of TypeError: undefined is not an object (evaluating 'this._callbacks'), which appears to be coming from the pusher.js library. Is it possible this is a bug in the pusher js library?

Issue Analytics

State:
Created 8 years ago
Comments:22 (10 by maintainers)

Top GitHub Comments

2reactions

dennis27commented, Feb 8, 2016

Just curious if anyone is still having this problem?

1reaction

zimbatmcommented, May 8, 2016

Maybe it doesn’t like the name variable being shadowed. Try renaming the inner name variable to name_

Top Results From Across the Web

TypeError: undefined is not an object (evaluating 'this.props ...

TypeError : undefined is not an object (evaluating 'this.props') when trying to use callback between child and parent in React.js.

Native callback: TypeError undefined is not an object ... - GitHub

Hi, I made this quite sometime back. Now I am unable to compile it on my end. I will try to fix it...

27/3 - TypeError: undefined is not an object (evaluating 'family ...

Here's the message: TypeError: undefined is not an object (evaluating 'family[i].name') The code outputs the right values to the console, ...

ajax call: "undefined is not an object (evaluating... - ServiceNow

Solved: I had a user complaining they are not able to use a certain page while using Safari on MacOS/Sierra which utilizes an...

undefined is not an object (evaluating 'dataText[i].length')

TypeError : undefined is not an object (evaluating 'dataText[i].length') ... 100); } // text finished, call callback if there is a callback function...