Valtio promises not resolving inside r3f's Canvas when using next.js

[sheunglaili]

Bug Description

TypeError: dispatcher.use is not a function thrown when trying to access snapshot using useSnapshot with state containing a promise field in a child component to r3f's Canvas.

I have try reproducing in plain react but do not encounter this issue.

Reproduction Link

https://codesandbox.io/p/devbox/r3f-valtio-promise-issue-nextjs-p8c533?layout=%257B%2522sidebarPanel%2522%253A%2522EXPLORER%2522%252C%2522rootPanelGroup%2522%253A%257B%2522direction%2522%253A%2522horizontal%2522%252C%2522contentType%2522%253A%2522UNKNOWN%2522%252C%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522id%2522%253A%2522ROOT_LAYOUT%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522UNKNOWN%2522%252C%2522direction%2522%253A%2522vertical%2522%252C%2522id%2522%253A%2522clxwclyyj0006356ja6919jy9%2522%252C%2522sizes%2522%253A%255B70%252C30%255D%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522EDITOR%2522%252C%2522direction%2522%253A%2522horizontal%2522%252C%2522id%2522%253A%2522EDITOR%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522EDITOR%2522%252C%2522id%2522%253A%2522clxwclyyj0002356jzvzw1iey%2522%257D%255D%257D%252C%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522SHELLS%2522%252C%2522direction%2522%253A%2522horizontal%2522%252C%2522id%2522%253A%2522SHELLS%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522SHELLS%2522%252C%2522id%2522%253A%2522clxwclyyj0004356jksv9d72c%2522%257D%255D%252C%2522sizes%2522%253A%255B100%255D%257D%255D%257D%252C%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522DEVTOOLS%2522%252C%2522direction%2522%253A%2522vertical%2522%252C%2522id%2522%253A%2522DEVTOOLS%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522DEVTOOLS%2522%252C%2522id%2522%253A%2522clxwclyyj0005356jfp1q247j%2522%257D%255D%252C%2522sizes%2522%253A%255B100%255D%257D%255D%252C%2522sizes%2522%253A%255B50%252C50%255D%257D%252C%2522tabbedPanels%2522%253A%257B%2522clxwclyyj0002356jzvzw1iey%2522%253A%257B%2522tabs%2522%253A%255B%257B%2522id%2522%253A%2522clxwclyyi0001356j4pem7fgp%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522FILE%2522%252C%2522filepath%2522%253A%2522%252FREADME.md%2522%257D%255D%252C%2522id%2522%253A%2522clxwclyyj0002356jzvzw1iey%2522%252C%2522activeTabId%2522%253A%2522clxwclyyi0001356j4pem7fgp%2522%257D%252C%2522clxwclyyj0005356jfp1q247j%2522%253A%257B%2522id%2522%253A%2522clxwclyyj0005356jfp1q247j%2522%252C%2522activeTabId%2522%253A%2522clxwcqfms00gi356jfldx8ro8%2522%252C%2522tabs%2522%253A%255B%257B%2522type%2522%253A%2522UNASSIGNED_PORT%2522%252C%2522port%2522%253A3000%252C%2522id%2522%253A%2522clxwcqfms00gi356jfldx8ro8%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522path%2522%253A%2522%252F%2522%257D%255D%257D%252C%2522clxwclyyj0004356jksv9d72c%2522%253A%257B%2522id%2522%253A%2522clxwclyyj0004356jksv9d72c%2522%252C%2522tabs%2522%253A%255B%257B%2522id%2522%253A%2522clxwclyyj0003356jmu00wfzq%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522TASK_LOG%2522%252C%2522taskId%2522%253A%2522dev%2522%257D%255D%252C%2522activeTabId%2522%253A%2522clxwclyyj0003356jmu00wfzq%2522%257D%257D%252C%2522showDevtools%2522%253Atrue%252C%2522showShells%2522%253Atrue%252C%2522showSidebar%2522%253Atrue%252C%2522sidebarPanelSize%2522%253A15%257D

[dai-shi]

Does r3f support React 19 yet?

[sheunglaili]

hmmm, I am currently using v1.13.2 but still get the TypeError: dispatcher.use is not a function when using valtio promises as seen in the codesandbox🤔

[dai-shi]

You are probably using React 19 or something. Make sure to use React 18.

[dai-shi]

Or, if you use Valtio v2, you shouldn't see TypeError: dispatcher.use is not a function error at least.

[sheunglaili]

if you look at the codesandbox, it's still running on react 18

[dai-shi]

Ah, I think next ignores what you have in package.json, and they just use their "bundled" React. Can you try it without Next.js?