how to solve this problem: Uncaught TypeError: camelize is not a function

Hello. I am building a web application using VueJS, Vuetify, and Laravel when I suddenly got this error: this is the error

Uncaught TypeError: camelize is not a function
    at expand_transition_default (expand-transition.ts:16:26)
    at index.ts:26:82

I don't what this error means. Please help.

Level 1

The error doesn't show if I run npm run build. But if I go back to npm run dev, the error pops up.

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