I want to try install next.js to start a project, but when I finished steps on tutorial, when I run npm run dev, I get a error 500 on my page by http://localhost:3000, and get error below:

my package.json like this:
"dependencies": {
"next": "^8.0.1",
"react": "^16.8.2",
"react-dom": "^16.8.2"
},
"scripts": {
"dev": "next",
"build": "next build",
"start": "next start"
}
Is there need import babel/core-js manually?
I also encountered such a problem.
Please provide a reproduction when creating issues.

@timneutkens
That is not really a reproduction, please provide a repository or similar. I can't reproduce based on these 3 deps.
I will get an error when installing with cnpm, this error will not occur with npm锛宻orry for disturbance!
I will get an error when installing with cnpm, this error will not occur with npm锛宻orry for disturbance!
but I want to know which package will affect it
The same thing happened to me on this project. can you share some solutions to this problem? @ht1131589588
fortunately, I solved this problem with a downgraded version.
this is my packjson file:

I also met this problem. It was cnpm that couldn't. It was really unfriendly.
I also met this problem. It was cnpm that couldn't. It was really unfriendly.
i use yarn that solve that
why is this closed? I am also getting this issue with next 8 and pnpm.
I am getting this issue all over the place as well!
After I updated to NEXT 8.0.3
It's babel's issue https://github.com/babel/babel/issues/9734#issue-423654875
I solved it by installing core-js
yarn add core-js --exact
The babel issue was closed with - "I'm closing this issue, since it is caused by a lot of packages which we don't control and which use core-js without specifying it in their deps."
Most helpful comment
I am getting this issue all over the place as well!
After I updated to NEXT 8.0.3