question-mark
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: Cannot convert undefined or null to object (installHook.js)

See original GitHub issue
installHook.js:1 Uncaught TypeError: Cannot convert undefined or null to object
    at Function.keys (<anonymous>)
    at Module.12 (installHook.js:1)
    at n (installHook.js:1)
    at installHook.js:1
    at installHook.js:1

on any site in Opera 64.0.3409.0

Issue Analytics

  • State:closed
  • Created 4 years ago
  • Reactions:4
  • Comments:8 (2 by maintainers)

github_iconTop GitHub Comments

6reactions
jscriptcodercommented, Sep 13, 2019

I just noticed this line, https://github.com/React-Sight/React-Sight/blob/master/chrome-ext/backend/installHook.js#L16

I think it should be instead:

const reactInstances = window.__REACT_DEVTOOLS_GLOBAL_HOOK__.renderers || null;

Notice it’s renderers, instead of _renderers

2reactions
ssr714commented, Aug 20, 2019

I face the same issue in Latest chrome Version 76.0.3809.100 (Official Build) (64-bit).

Read more comments on GitHub >

github_iconTop Results From Across the Web

Cannot convert undefined or null to object - Stack Overflow
stack.push references Array.prototype.push . This: const stack = []; [1,2,3].forEach(stack.push);. doesn't work because it's equivalent to:
Read more >
Cannot convert undefined or null to object - YouTube
JavaScript : How to resolve TypeError : Cannot convert undefined or null to object [ Gift : Animated Search Engine ...
Read more >
Cannot convert undefined or null to Object in JavaScript
The "Cannot convert undefined or null to Object" error occurs when we pass a null or an undefined value to a function that...
Read more >
Error: "TypeError: Cannot convert undefined or nul...
Error: "TypeError: Cannot convert undefined or null to object" with Publish to Tableau Server tool. Article Options.
Read more >
Cannot convert undefined or null to object at Function.entries
TypeError : Cannot convert undefined or null to object at Function.entries ... web-ooi/1.2168.164/ChallengesListPageController.bundle.min.js:1:41624) at eval ...
Read more >

github_iconTop Related Medium Post

No results found

github_iconTop Related StackOverflow Question

No results found

github_iconTroubleshoot Live Code

Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start Free

github_iconTop Related Reddit Thread

No results found

github_iconTop Related Hackernoon Post

No results found

github_iconTop Related Tweet

No results found

github_iconTop Related Dev.to Post

No results found

github_iconTop Related Hashnode Post

No results found