Repository: create-react-app
Issue: dynamic import are unrecognized in 3.0.0-next.b0cbf2ca, compile fails
Labels: tag: underlying tools,issue: needs investigation

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`npm version` 6.8.0

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I used the command, but I got an error instead.
(node:16088) UnhandledPromiseRejectionWarning: Error: The system cannot find the path specified.

    at Function.e.exports.sync (C:\Users\jonas\AppData\Roaming\npm\node_modules\create-react-app\node_modules\envinfo\dist\envinfo.js:1:7778)
    at Object.copySync (C:\Users\jonas\AppData\Roaming\npm\node_modules\create-react-app\node_modules\envinfo\dist\envinfo.js:1:104976)
    at Object.t.writeSync.e [as writeSync] (C:\Users\jonas\AppData\Roaming\npm\node_modules\create-react-app\node_modules\envinfo\dist\envinfo.js:1:123499)
    at C:\Users\jonas\AppData\Roaming\npm\node_modules\create-react-app\node_modules\envinfo\dist\envinfo.js:1:124274    at Promise.all.then.e (C:\Users\jonas\AppData\Roaming\npm\node_modules\create-react-app\node_modules\envinfo\dist\envinfo.js:1:124289)
(node:16088) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwinginside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:16088) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

I'm on Windows 10
- node v11.8.0
- npm v6.8.0
- react-scripts v3.0.0-next.b0cbf2ca
- react & react-dom v16.8.1

### Steps to Reproduce

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(Write your steps here:)

1. Create a new project with the latest prerelease (3.0.0-next.b0cbf2ca)
2. Import a module dynamically (eg. const AsyncApp = lazy(() => import('./App')))
3. npm start -> Failed to compile


### Expected Behavior

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The build would pass, as it does in previous versions.

### Actual Behavior

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![image](https://user-images.githubusercontent.com/1959615/54519394-babdbf00-4966-11e9-852a-af35b9ae7ed6.png)



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