Example Doesn't Run

[RileySeaburg]

Tried implementing this example but I wasn't sure where the config was pulling ./graphql from.

Turns out the compiler has no idea either.

`Error: Cannot find module 'graphql'
Require stack:

• C:\Users\riley\graphql-codegen-apollo-next-ssr\example\node_modules@graphql-codegen\plugin-helpers\index.js
• C:\Users\riley\graphql-codegen-apollo-next-ssr\example\node_modules@graphql-codegen\cli\bin.js
  at Function.Module._resolveFilename (internal/modules/cjs/loader.js:880:15)
  at Function.Module._load (internal/modules/cjs/loader.js:725:27)
  at Module.require (internal/modules/cjs/loader.js:952:19)
  at require (internal/modules/cjs/helpers.js:88:18)
  at Object. (C:\Users\riley\graphql-codegen-apollo-next-ssr\example\node_modules@graphql-codegen\plugin-helpers\index.js:10:17)
  at Module._compile (internal/modules/cjs/loader.js:1063:30)
  at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
  at Module.load (internal/modules/cjs/loader.js:928:32)
  at Function.Module._load (internal/modules/cjs/loader.js:769:14)
  at Module.require (internal/modules/cjs/loader.js:952:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  'C:\Users\riley\graphql-codegen-apollo-next-ssr\example\node_modules\@graphql-codegen\plugin-helpers\index.js',
  'C:\Users\riley\graphql-codegen-apollo-next-ssr\example\node_modules\@graphql-codegen\cli\bin.js'
  ]
  }
  error Command failed with exit code 1.`

[fjfalah]

@RileySeaburg have you done to build in the parent directory? I got the same error for the first time I ran the codegen in the example, and it worked when I build the parent directory first