next is incompatible with "ow"

[drortirosh]

Bug report

A project importing "ow" (even indirectly) causes strange compilation-time error.

To Reproduce

• yarn create next-app
• edit pages/index.js
• add import ow from "ow"
• yarn dev

See error:

Module not found: Can't resolve 'fs' in '/Users/dror/Downloads/tnext/node_modules/ow/dist/source'

NOTE: the problem doesn't occur in plain react project (i.e. created with yarn create react-app

Expected behavior

obviously, the project should start normally.

System information

• OS: found on OS/X

I opened it as an issue of 'ow', but they say here that it seems more likely line Next problem...

Note that OW works correctly in browser environment (we used it with react and with plain vanilla webpack)