WordPress 5.4 – TypeError: Cannot read property ‘DotTip’ of undefined

Hello,

Seem’s it fixed. Here is the solution:

1. Delete the cache of the browser.
2. And if there is caching plugin so delete the cache of the plugin also.

No need to delete plugins.

Hey @insideril having the same issues on our site and your solution did not work.

@olumn2020 Strange,

I had this error on 2 websites, nothing same – not the theme and not the plugins.

This solved.

Ask your hosting company, maybe there is a cache on the server. Even CloudFlare.

You may also reinstall it and disable & enable all plugins.

Thanks @olumn2020 Right. After cache cleannig in browser(chrome) everything is OK

Thanks @insideril your solution fixed it for me too.

1. Delete the cache of the browser.
2. And if there is caching plugin so delete the cache of the plugin also.

No need to delete plugins.

@insideril I cleared the cache on the server side and I am still getting the same error as before, even when following the following:

1. Delete the cache of the browser.
2. And if there is caching plugin so delete the cache of the plugin also.

The hosting company offered me the following, potential solution:

Well I would suggest instead, since this is already a core file of WordPress instead, I would suggest backing up your current WordPress site then install a core files of WordPress 5.4 and move your current htaccess, wp-content and wp-settings files to the new WordPress files of yours and I think that should fix the issue.

• This reply was modified 4 years, 8 months ago by olumn2020.

1. Delete the cache of the browser.
2. And if there is caching plugin so delete the cache of the plugin also.

No need to delete plugins.

This solution works for me too! I faced problem as well after WordPress 5.4 update. It showed up when I was trying to edit one of my page.

Thanks @insideril

After doing what the hosting group recommended we are still seeing the same issues as before. I cannot figure this out to save my life.
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• This reply was modified 4 years, 8 months ago by Yui.
• This reply was modified 4 years, 8 months ago by Yui. Reason: please use CODE button for proper formatting
• This reply was modified 4 years, 8 months ago by olumn2020.

@olumn2020

Proceed with clearing caches.
Yout browser
All site caches: cache plugin, autoptimize/whatever else
If it doesnt help – consider creating your own topic with the issue.

I tried all the solutions in this forum with no results. I fixed the problem and here’s how: First, I cleared my browser’s cache(Chrome). It turned out that when I updated WP, it cleared the REST API keys for some reason. Since I’m using Gravity Forms, I went to Forms>Settings>REST API, generated new keys, copied and pasted them in notepad(this is important). In these settings, there’s a link to the WP knowledge base that walks you through the authentication process step by step. I followed them to the letter, and everything works just fine. If someone doesn’t understand what I’m talking about, I will be happy to give you more details.
Stay safe guys!

I tried the cache cleaning and it worked partly. I figured that the problem is Gutenberg editor related. After clearing the cache, I can reach the editor page but the Gutenberg editor is still broken. When I add a block, it adds the block on top of the page where I can’t see them.

Does anyone know how to fix this?

@oguz6002
It seems as if this error may occur in various cases. I suggest that you open your own topic instead, and then hopefully someone will be able to mentor your troubleshooting.

Just ran into the same issue. Seems to be a caching issue with some (left over) files?

My solution was opening the site in incognito / disabled caching and relog. Editor then worked fine.