Error when clicking on "Add a component" in Dynamic zone (TypeError: Cannot read properties of undefined (reading 'length'))

Questions and Answers Strapi Admin
1
System Information
  • Strapi Version: v4.15.0
  • Operating System: windows
  • Database: SQLite
  • Node Version: v20.9.0
  • NPM Version:
  • Yarn Version: v1.22.10

A white screen appears, when I click “Add a component” in a Dynamic zone. It is a new strapi instance, created with yarn:

image
image1191×437 14.1 KB

It shows the following error in the console:

Uncaught TypeError: Cannot read properties of undefined (reading ‘length’)
at Aa (content-type-builder.0bc97051.chunk.js:131:5319)
at Ss (main.f84563f1.js:736:20469)
at fh (main.f84563f1.js:738:45155)
at lh (main.f84563f1.js:738:40774)
at ip (main.f84563f1.js:738:40702)
at $f (main.f84563f1.js:738:40556)
at Gu (main.f84563f1.js:738:36811)
at xd (main.f84563f1.js:738:37616)
at za (main.f84563f1.js:736:3278)
at main.f84563f1.js:738:35128

1 Like
2

I did not have any issues. Able to add components. Which Strapi version are you on?
i see that you have added components previously. Can you provide me with steps to replicate. Maybe there is an issue with the particular component that you are adding.

3

Please run yarn build or npm run build if this does not fix your issue please open a issue on Issues · strapi/strapi · GitHub

4

Same issue npm run build does nothing

I’m using “@strapi/strapi”: “4.15.0”

downgrading to 4.13.0 worked for me

5

I did a downgrading to 4.14.0, now it works. Thanks for your help!

6

how did you downgrade it to 4.14? I am currently in 4.15

7

can you help me with downgrad !

8

You have to change the versions in the package.json file:

image

After that, you can run yarn install

9

i did it , still version 4.15.0 when run npm run develop

10

I recommend you, to switch from npm to yarn. Check this article:
https://medium.com/@bosti/npm-to-yarn-migration-guide-full-tutorial-step-by-step-how-to-migrate-40533da1bb0d

11

Thanks for your efforts !

12

Same error, Is there a better solution or I need to downgrade? (same error on stripe 15.0 and 15.2)

13

see github issue

14

I think Version4.15 came with trouble of plugins.

I remember that I downgrade for anohter problem to solve.

Edit:
But I upgraded to V4.16(.2) seems ok.
I think they fixed many troubles. Thanks.
seems that they did good job.