When attempting to install the reactjs app using npm, an error with code E404 was

I recently started learning reactjs and decided to create a react app. I followed the steps on the React website but encountered an error. My Node version is v8.11.1 and npx version is 9.7.1.

Interestingly, I was able to create the app using npx create-react-app, but encountered issues when trying with npm.

MacBook-teddy$ npm install -g create-react-app 
create-react-app amber_Web 
npm ERR! code E404
npm ERR! 404 Not Found: amber_Web@latest

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/teddy/.npm/_logs/2018-06-07T02_08_37_384Z-debug.log

This is the content of the log file:

... (log details here) ...

Thanks for your help.

node.jsreactjsnpm

Answer №1

It seems like you may have attempted to execute create-react-app while installing it.

To resolve this, please run npm install -g create-react-app although it likely has already been installed.

After that, run create-react-app amber-web

UPDATE:

The reason for the error is that you entered both 

npm install -g create-react-app 
create-react-app amber_Web
on a single command line, prompting npm to try installing the create-react-app package twice along with the non-existent amber_Web package which resulted in the 404 error. * Also note that package names should no longer contain capital letters

Answer №2

An issue arises due to npm adhering to the standards of application naming, which prohibits the use of uppercase letters in application names.

Perhaps consider using create-react-app amber_web

For further information, please refer to: npmjs documentation

Answer №3

give it a shot:
npm checkup

npm status

"npm checkup performs a series of assessments to confirm that your npm setup has all the necessary components for handling your JavaScript modules."

Answer №4

It seems like there may be an issue with both the cash and React installations. To fix this, you can follow these steps:

npm cache clean --force

Next, run the following command:

npm install -g create-react-app

After that, verify if the installation was successful by running:

create-react-app --version

If everything is working fine at this point, then your installations are good to go. However, if you're still facing issues, you may need to uninstall node.js, delete all its caching folders, reinstall a fresh version of node.js, and then proceed with installing React.

Answer №5

give it a shot

npm cache clean --force

after that

create-react-app your_app_name

Answer №6

Nothing seemed to work until I tried

npm install -g webpack

npm -g list

├── <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="f89b8a9d998c9dd58a9d999b8cd5998888b8cdd6c8d6c9">[email protected]</a>   
└── <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="176072756776747c57223920243927">[email protected]</a>

Answer №7

To update the registry, simply type in this command- npm config set registry http://registry.npmjs.org

Next, execute npm install -g create-react-app

Create your project by entering npx create-react-app your_project_name

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