Create-react-app: Error creating a new app - Couldn't find package "@babel/plugin-proposal-decorators" on the "npm" registry

[tafelito]

Is this a bug report?

Yes

Environment

System:
OS: macOS 10.14.1
CPU: x64 Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz
Binaries:
Node: 11.2.0 - /usr/local/bin/node
Yarn: 1.12.3 - /usr/local/bin/yarn
npm: 6.4.1 - /usr/local/bin/npm
Browsers:
Chrome: 70.0.3538.110
Safari: 12.0.1
npmPackages:
react: Not Found
react-dom: Not Found
react-scripts: Not Found
npmGlobalPackages:
create-react-app: 2.1.1

Steps to Reproduce

1. run npx create-react-app my-app

Expected Behavior

Create a new cra app

Actual Behavior

I'm getting this error

Creating a new React app in /..../...

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

yarn add v1.12.3
[1/4] 🔍  Resolving packages...
error Couldn't find package "@babel/plugin-proposal-decorators" on the "npm" registry.
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

Aborting installation.
  yarnpkg add --exact react react-dom react-scripts --cwd /.../... has failed.

Deleting generated file... package.json
Deleting generated file... yarn.lock
Deleting my-app/ from /.../...
Done.

[whackdev]

I experienced the same with yarn create react-app my-app

Creating a new React app in /.../.../.../.../....

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

yarn add v1.12.3
[1/4] 🔍  Resolving packages...
error Couldn't find package "@babel/plugin-proposal-decorators" on the "npm" registry.
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

Aborting installation.
  yarnpkg add --exact react react-dom react-scripts --cwd /.../.../.../.../... has failed.

Deleting generated file... package.json
Deleting generated file... yarn.lock
Deleting reducer-hook-todo/ from /Users/whacktop/Desktop/Projects
Done.
error Command failed.
Exit code: 1

[tafelito]

seems to be an encoding issue

here's a more detailed error

Request "https://registry.yarnpkg.com/@babel%2fplugin-proposal-decorators" finished with status code 401.

Using npm instead of yarn gives a different errror

npm http fetch GET 401 https://registry.npmjs.org/@babel%2fcore 303ms
npm timing stage:rollbackFailedOptional Completed in 1ms
npm timing stage:runTopLevelLifecycles Completed in 897ms
npm verb stack Error: 401 Unauthorized: @svgr/[email protected]

[Jokinen]

When using yarn, I get the same error as above. When I'm running the command with the --use-npm flag, I'm getting the following error

npm ERR! code E401
npm ERR! 404 401 Unauthorized: @babel/template@^7.1.0

[Jokinen]

This issue migth be related with this:

https://npm.community/t/can-t-install-scoped-packages-e401-unauthorized/3631/5

In the thread a suggested workaround was logging out of npm (npm logout). It worked for me :)

[jayarjo]

@Jokinen that worked. But I'd say a not intuitive solution to the problem, to say at least.

[Jokinen]

@jayarjo The linked thread implied that you can login again after logging out and that everything should work as expected--that knowledge may be helpful if you depends on features requiring auth :) Haven't tested myself.

The error seems to be due to an issue with npm, hopefully it'll be resolved soon.

[tafelito]

@Jokinen that worked! Thanks for pointing it out. I had to npm logout and then npm login even tho I work with public packages. We'll have to follow that issue to see how it goes

[eibay]

After npm login / logout, I still encountered an error but this time around, it refers to incompatible version of node as shown below:

error [email protected]: The engine "node" is incompatible with this module. Expected version "^6.14.0 || ^8.10.0 || >=9.10.0".
error Found incompatible module

So to resolve my issue, just select the required version, in my case, nvm use v8.11.1

[stale[bot]]

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

[stale[bot]]

This issue has been automatically closed because it has not had any recent activity. If you have a question or comment, please open a new issue.