Storybook Fails to Run After Cloning Repo

[gabrielliwerant]

What is the current behavior?

After cloning repo and running npm install, npm run storybook errors out.

What is the expected behavior?

Storybook should finish loading and allow viewing in broswer.

Could you provide a CodeSandbox demo reproducing the bug?

Error output is as follows:

ERR! TypeError: Cannot read property 'includes' of undefined
ERR!     at MiniCssExtractPlugin.apply (C:\Repos\react-transition-group\node_modules\mini-css-extract-plugin\dist\index.js:87:42)
ERR!     at webpack (C:\Repos\react-transition-group\node_modules\@storybook\builder-webpack4\node_modules\webpack\lib\webpack.js:51:13)
ERR!     at starterGeneratorFn (C:\Repos\react-transition-group\node_modules\@storybook\builder-webpack4\dist\cjs\index.js:137:18)
ERR!     at starterGeneratorFn.next (<anonymous>)
ERR!     at Object.start (C:\Repos\react-transition-group\node_modules\@storybook\builder-webpack4\dist\cjs\index.js:275:34)
ERR!     at async Promise.all (index 0)
ERR!     at async storybookDevServer (C:\Repos\react-transition-group\node_modules\@storybook\core-server\dist\cjs\dev-server.js:203:28)
ERR!     at async buildDevStandalone (C:\Repos\react-transition-group\node_modules\@storybook\core-server\dist\cjs\build-dev.js:120:31)
ERR!     at async buildDev (C:\Repos\react-transition-group\node_modules\@storybook\core-server\dist\cjs\build-dev.js:174:5)
ERR!  TypeError: Cannot read property 'includes' of undefined
ERR!     at MiniCssExtractPlugin.apply (C:\Repos\react-transition-group\node_modules\mini-css-extract-plugin\dist\index.js:87:42)
ERR!     at webpack (C:\Repos\react-transition-group\node_modules\@storybook\builder-webpack4\node_modules\webpack\lib\webpack.js:51:13)
ERR!     at starterGeneratorFn (C:\Repos\react-transition-group\node_modules\@storybook\builder-webpack4\dist\cjs\index.js:137:18)
ERR!     at starterGeneratorFn.next (<anonymous>)
ERR!     at Object.start (C:\Repos\react-transition-group\node_modules\@storybook\builder-webpack4\dist\cjs\index.js:275:34)
ERR!     at async Promise.all (index 0)
ERR!     at async storybookDevServer (C:\Repos\react-transition-group\node_modules\@storybook\core-server\dist\cjs\dev-server.js:203:28)
ERR!     at async buildDevStandalone (C:\Repos\react-transition-group\node_modules\@storybook\core-server\dist\cjs\build-dev.js:120:31)
ERR!     at async buildDev (C:\Repos\react-transition-group\node_modules\@storybook\core-server\dist\cjs\build-dev.js:174:5) {
ERR!   stack: "TypeError: Cannot read property 'includes' of undefined\n" +
ERR!     '    at MiniCssExtractPlugin.apply (C:\\Repos\\react-transition-group\\node_modules\\mini-css-extract-plugin\\dist\\index.js:87:42)\n' +
ERR!     '    at webpack (C:\\Repos\\react-transition-group\\node_modules\\@storybook\\builder-webpack4\\node_modules\\webpack\\lib\\webpack.js:51:13)\n' +
ERR!     '    at starterGeneratorFn (C:\\Repos\\react-transition-group\\node_modules\\@storybook\\builder-webpack4\\dist\\cjs\\index.js:137:18)\n' +
ERR!     '    at starterGeneratorFn.next (<anonymous>)\n' +
ERR!     '    at Object.start (C:\\Repos\\react-transition-group\\node_modules\\@storybook\\builder-webpack4\\dist\\cjs\\index.js:275:34)\n' +
ERR!     '    at async Promise.all (index 0)\n' +
ERR!     '    at async storybookDevServer (C:\\Repos\\react-transition-group\\node_modules\\@storybook\\core-server\\dist\\cjs\\dev-server.js:203:28)\n' +
ERR!     '    at async buildDevStandalone (C:\\Repos\\react-transition-group\\node_modules\\@storybook\\core-server\\dist\\cjs\\build-dev.js:120:31)\n' +
ERR!     '    at async buildDev (C:\\Repos\\react-transition-group\\node_modules\\@storybook\\core-server\\dist\\cjs\\build-dev.js:174:5)'
ERR! }

Error occurs on running git clone, npm install and npm run storybook on master, commit 2989b5b87b4b4d1001f21c8efa503049ffb4fe8d