by watching the prismic tutorial(5hr) i completed 3d portfolio using prismic and next.js and running good in localhost without any error . when i try to deploy in versal import problems i am getting like @prismicio/client error .
According to the error and your project structure, it looks like Vercel attempts to build your website using the root package.json of your repository, which doesn't appear to be configured as a monorepo, leading to missing dependencies.
Can you try updating your Vercel "Root Directory" settings under the "Build and Deployment" section? I believe it should look something like this: