npx create-react-app fails because of core-js update.

[miteshkumar77]

Describe the bug

When I run npx create-react-app client, it terminates while trying to update core-js, and
core-js does not update properly.

Did you try recovering your dependencies?

C:\mitesh\javascriptcode\calendar>npm --version
6.14.2

Which terms did you search for in User Guide?

I did not find anything similar to my output.

Environment

C:\mitesh\javascriptcode\calendar\client>npx create-react-app --info

Environment Info:

  current version of create-react-app: 3.4.0
  running from C:\Users\kumarm4\AppData\Roaming\npm\node_modules\create-react-app

  System:
    OS: Windows 10 10.0.18363
    CPU: (12) x64 Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
  Binaries:
    Node: 12.16.1 - C:\Program Files\nodejs\node.EXE
    Yarn: Not Found
    npm: 6.14.2 - C:\Users\kumarm4\AppData\Roaming\npm\npm.CMD
  Browsers:
    Edge: 44.18362.449.0
    Internet Explorer: 11.0.18362.1
  npmPackages:
    react:  16.13.0
    react-dom:  16.13.0
    react-scripts: Not Found
  npmGlobalPackages:
    create-react-app: Not Found

Steps to reproduce

1. Go to working directory. Run npm install create-react-app -g
2. Run npx create-react-app client
3. cd client
4. npm version core-js

Expected behavior

create-react-app client will finish and tell you to cd
into client directory.

npm version core-js will display version of core-js

Actual behavior

npx create-react-app client gives me the following output:

C:\mitesh\javascriptcode\calendar>npx create-react-app client

Creating a new React app in C:\mitesh\javascriptcode\calendar\client.

Installing packages. This might take a couple of minutes.
Installing react, react-dom, and react-scripts with cra-template...


> [email protected] postinstall C:\mitesh\javascriptcode\calendar\client\node_modules\babel-runtime\node_modules\core-js  > node -e "try{require('./postinstall')}catch(e){}"

Microsoft Windows [Version 10.0.18363.720]
(c) 2019 Microsoft Corporation. All rights reserved.

C:\mitesh\javascriptcode\calendar\client\node_modules\babel-runtime\node_modules\core-js>

It places me in core-js folder.

Then npm install -g core-js gives me the following output:

C:\mitesh\javascriptcode\calendar\client>npm view core-js version
3.6.4

C:\mitesh\javascriptcode\calendar\client>npm install core-js -g

> [email protected] postinstall C:\Users\kumarm4\AppData\Roaming\npm\node_modules\core-js
> node -e "try{require('./postinstall')}catch(e){}"

Microsoft Windows [Version 10.0.18363.720]
(c) 2019 Microsoft Corporation. All rights reserved.

C:\Users\kumarm4\AppData\Roaming\npm\node_modules\core-js>

Reproducible demo

To reproduce, do npm create-react-app client.
Then corrupt your core-js dependency in %appdata%/npm/node_modules/core-js.
(Note. I didn't corrupt my dependency myself.)

npx create-react-app client gives me the following output:

C:\mitesh\javascriptcode\calendar>npx create-react-app client

Creating a new React app in C:\mitesh\javascriptcode\calendar\client.

Installing packages. This might take a couple of minutes.
Installing react, react-dom, and react-scripts with cra-template...


> [email protected] postinstall C:\mitesh\javascriptcode\calendar\client\node_modules\babel-runtime\node_modules\core-js  > node -e "try{require('./postinstall')}catch(e){}"

Microsoft Windows [Version 10.0.18363.720]
(c) 2019 Microsoft Corporation. All rights reserved.

C:\mitesh\javascriptcode\calendar\client\node_modules\babel-runtime\node_modules\core-js>

It places me in core-js folder.

Then npm install -g core-js gives me the following output:

C:\mitesh\javascriptcode\calendar\client>npm view core-js version
3.6.4

C:\mitesh\javascriptcode\calendar\client>npm install core-js -g

> [email protected] postinstall C:\Users\kumarm4\AppData\Roaming\npm\node_modules\core-js
> node -e "try{require('./postinstall')}catch(e){}"

Microsoft Windows [Version 10.0.18363.720]
(c) 2019 Microsoft Corporation. All rights reserved.

C:\Users\kumarm4\AppData\Roaming\npm\node_modules\core-js>

[DanielRuf]

See #781

[slowcheetah]

Can't reproduce. My react app successfully created.

Try to full uninstall core-js & reinstall.