Webpack 5 Breaking Changes "process/browser"

Question

Screenshot for Error: Can't resolve 'process/browser':

I'm hoping someone could help me here. With the Webpack 5 breaking changes with polyfills I was able to use react-rewired to add fallbacks to a config-overrides.js

I npm installed every dependency I could, but I'm still getting this error for "process/browser". I'm not really sure how to identify the problem.

const webpack = require("webpack");

module.exports = function override(config) {
  const fallback = config.resolve.fallback || {};
  Object.assign(fallback, {
    crypto: require.resolve("crypto-browserify"),
    stream: require.resolve("stream-browserify"),
    assert: require.resolve("assert"),
    http: require.resolve("stream-http"),
    https: require.resolve("https-browserify"),
    os: require.resolve("os-browserify"),
    url: require.resolve("url"),
    zlib: require.resolve("browserify-zlib"),
    fs: require.resolve("browserify-fs"),
    process: require.resolve("process"),
    buffer: require.resolve("buffer"),
    net: require.resolve("net"),
  });
  config.resolve.fallback = fallback;
  config.plugins = (config.plugins || []).concat([
    new webpack.ProvidePlugin({
      process: "process/browser",
      Buffer: ["buffer", "Buffer"],
    }),
  ]);
  return config;
}; 

Answer 1

I was having the exact same problem, and eventually found this https://github.com/react-dnd/react-dnd/issues/3425#issuecomment-1214554950.

I added 'process/browser': require.resolve('process/browser') to the fallbacks object without changing anything else and it worked. Hopefully it fixes it for you too.