Repository: create-react-app
Issue: Babel JSX Syntax error when importing from a linked library
Labels: tag: documentation

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### Is this a bug report?

Yes

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Yes

### Which terms did you search for in User Guide?

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### Environment

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Running `npx create-react-app --info` does not seem to work. Getting: 
```
Please specify the project directory:
  create-react-app <project-directory>

For example:
  create-react-app my-react-app

Run create-react-app --help to see all options.
```
However I am using:
Node v8.11.3
Yarn 1.9.4
npm 6.4.1
react-scripts 2.0.0-next.2150693d

### Steps to Reproduce

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1. Create a new Create React App (The actual App)
2. Create another Create React App (The "Library")
3. Link them together: Import a component from the Library into the App

This used to work with react-scripts 2.0.0-next.a671462c

### Expected Behavior

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The app should compile just fine as it used to in 2.0.0-next.a671462c

### Actual Behavior

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Application fails to compile with "Syntax error: Unexpected token" in the component, that was attempted to be imported from the other application.

![screen shot 2018-09-26 at 16 36 00](https://user-images.githubusercontent.com/13168478/46087325-5fc2c080-c1aa-11e8-9c50-35f048f41b8b.png)

To me it seems like the babel loader is somehow not transpiling the imported component.

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https://github.com/FelixKuehl/cra-alpha-issue-example

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