[v5-alpha.11] Could not find dependency: '@emotion/styled'

[numToStr]

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

First of all congratulations on introducing unstyled components ❤️ 🎉 .

Current Behavior 😯

I am getting this error after updating from alpha.10 to alpha.11.

Could not find dependency: '@emotion/styled' relative to '/node_modules/@material-ui/styled-engine/esm/index.js'

Do I need to install @emotion/styled and @emotion/core as well? As there is no mention of installation in the changelog.

Expected Behavior 🤔

No error.

Steps to Reproduce 🕹

https://codesandbox.io/s/sliderstyled-with-styled-components-forked-4rtsn

Your Environment 🌎

Tech	Version
Material-UI	v5.0.0-alpha-11
React	16.13.1
Browser	Chromium: 85.0.4183.83
TypeScript	4.0.3
OS	Linux

[mnajdova]

@numToStr thanks for reporting. Yes, you need to install @emotion/core & @emotion/styled too. Closing as duplicate of #22777 - installation guide was updated.

[ghost]

@mnajdova , Hi. I waited for the alpha release 12 to update, just to clarify, the dependencies need to be on my package, i.e Material UI will not install it internally? And Emotion its used for performance in <Box /> by what I have read from the releases?!?