Not able to install icons yarn add @material-ui/icons package

• The issue is present in the latest release.
• I have searched the issues of this repository and believe that this is not a duplicate.

Current Behavior 😯

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Expected Behavior 🤔

Steps to Reproduce 🕹

Steps:

1.yarn add @material-ui/icons, showing network errors

Context 🔦

Your Environment 🌎

`npx @material-ui/envinfo`

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[oliviertassinari]

#26310 was reverted in #26656 as it breaks Next.js.

[eps1lon]

With developers keep struggling on v4, and v5 adding a good +30% more icons, it seems that we need to do something about it.

Agreed. I do have some ideas that should hopefully get us down to the v4 install size. Even going so far as just shipping ES modules since we no longer support node 10 but that’s a bit more prone to bugs.

• minify published icons code
• Replace import * as React from 'react' with import of what we need (e.g. just import { Fragment } from 'react';
• just ship ES modules

But that requires an update to the icons itself which aren’t checked in. So first we need to update the icons (probably ignore the new ones) and then vendor in material-ui-icons/material-icons.