Cannot deploy nextjs

[kexhest]

Hi!

Thanks for all the awesome work on next and now. Really loving the experience.

But I have a problem, just tried to deploy a next app and after several tries I just get Unable to import module 'now__launcher': Error in the build logs and the app responds with 502: An error occurred with your deployment. When I read into the logs it appears as if it tries to load an undefined version of next through the parsing of my package.json.

from the logs:

{ name: 'rps',
  version: '1.0.0',
  description: '',
  scripts: 
   { test: 'echo "Error: no test specified" && exit 1',
     dev: 'next',
     build: 'next build',
     start: 'next start',
     'now-build': 'next build' },
  license: 'MIT',
  dependencies: 
   { react: '^16.7.0-alpha.2',
     'react-dom': '^16.7.0-alpha.2',
     '@zeit/next-css': '^1.0.1',
     next: undefined,
     'prop-types': '^15.6.2',
     'react-spring': '^6.1.8',
     'next-server': 'canary' },
  devDependencies: { next: 'canary', 'next-server': undefined } }

my package.json

{
  "name": "rps",
  "version": "1.0.0",
  "description": "",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "dev": "next",
    "build": "next build",
    "start": "next start"
  },
  "license": "MIT",
  "dependencies": {
    "@zeit/next-css": "^1.0.1",
    "next": "^7.0.2-canary.26",
    "prop-types": "^15.6.2",
    "react": "^16.7.0-alpha.2",
    "react-dom": "^16.7.0-alpha.2",
    "react-spring": "^6.1.8"
  }
}

I only have one page (index.js) as this is just a test and everything works locally, here's my now.json:

{
  "version": 2,
  "name": "rps",
  "builds": [{ "src": "next.config.js", "use": "@now/next" }]
}

Any idea of where I might be doing something wrong? Tried searching for an answer to similar problems but couldn't find anything.

[kexhest]

It appears removing @zeit/next-css and going for https://www.npmjs.com/package/styled-jsx resolved the issue. Closing.

[jesstelford]

An alternative is to only run the @zeit/next-css during a build phase: vercel/next.js#5750 (comment)

[balupton]

Worth noting, that considering this issue, the documentation here is incorrect then:
https://www.npmjs.com/package/@zeit/next-typescript