Super expression must either be null or a function
I published the new 0.17.29 version on npm. Please try it and let me know if it fixes the issue.
Read full answer below ↓Question
GrapesJS version
- I confirm to use the latest version of GrapesJS
What browser are you using?
Chrome v95
Reproducible demo link
can't reproduce on those links
Describe the bug
trying to import grapesjs in an ember app.
Code of Conduct
- I agree to follow this project's Code of Conduct
Answers (4)
I published the new 0.17.29 version on npm. Please try it and let me know if it fixes the issue.
Setup my new MBP and this happens to me as well. +1
@abozhinov are you talking about the 0.17.28 or 0.17.29?
Thanks for reporting this, @josh-fnbtech. The issue with Super expression must either be null or a function appears to be a race condition or state management timing problem. This typically happens when component lifecycle events and DOM modifications overlap, creating an inconsistent state. What t...
Related Questions and Answers
Continue research with similar issue discussions.
Issue #4352
Add Norwegian language
GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? Chrome v101 Reproducible demo link NA Desc...
Issue #5869
Icons and Shapes options
GrapesJS version[X] I confirm to use the latest version of GrapesJSWhat browser are you using? ChromeReproducible demo link testDescribe th...
Issue #5006
aphostrope problem in grapejs - 's not showing while displaying from html string
GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? Chrome v91 Reproducible demo link https://...
Issue #6180
Trait's `setValue()` method not called when value changes
GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? Chrome latest Reproducible demo link https...
Paid Plugins That Match This Issue
Curated by issue keywords and label relevance to help you ship faster.
Loading paid plugin recommendations...
Check the open-source GrapesJS plugins on GitHub or run a quick search in our free catalog.
Browse free plugins →Premium plugins ship with support, regular updates, and production-ready features — save days of integration work.
Browse premium plugins →Related tutorials
In-depth guides on the same topic.
Tutorial
Embed GrapesJS in Your SaaS: A Weekend Guide
Embed GrapesJS in your SaaS and ship a white-label page builder over a weekend. Honest tradeoffs, real code, and the plugins that close the UX gap.
Tutorial
Big Updates: TinyMCE 8 and Placeholder 2.0 for GrapesJS
In May we shipped major updates to two of our most popular GrapesJS plugins — TinyMCE Inline Text Editor and Placeholder.
Tutorial
Find the Right GrapesJS Plugin in Seconds: Smarter Discovery Is Live
We're shipping a set of discovery upgrades. New label filters, a proper compatibility switch for GrapesJS vs Studio, one-click and a smarter sort bar.
Browse Plugin Categories
Jump directly to plugin category pages on the marketplace.