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Upgrade to Preact 10 gives 'Uncaught TypeError: Cannot create property 'current' on string 'element''

See original GitHub issue

I just upgraded from Preact 8 to Preact 10 and I’m getting this error when I run it in the browser.

preact.module.js:1 Uncaught TypeError: Cannot create property 'current' on string 'element'

at A (preact.module.js:1)
at b (preact.module.js:1)
at $ (preact.module.js:1)
at preact.module.js:1
at x (preact.module.js:1)
at x (preact.module.js:1)
at b (preact.module.js:1)
at $ (preact.module.js:1)
at preact.module.js:1
at x (preact.module.js:1)`

Any idea what this error means? i’m aliasing from ‘react’ to ‘preact/compat’ and everything worked fine before I upgraded. I’ll try upgrading to the latest version of Preact to see if that helps.

Issue Analytics

State:
Created 4 years ago
Comments:6 (6 by maintainers)

Top GitHub Comments

2reactions

JoviDeCroockcommented, Dec 11, 2019

Yes, they have been deprecated

1reaction

peterswallowcommented, Dec 11, 2019

The deprecation is not mentioned in the upgrade guide nor CreateRef documentation https://preactjs.com/guide/v10/upgrade-guide/ https://preactjs.com/guide/v10/refs/#createref

I’ll try to add something to the upgrade-guide later

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