create-react-app fails with "404 Not Found" on ieee754

[mlone]

Consistently getting the following install failure when attempting to create a react app. This error occurs when using yarn, npx, or npm

$ yarn create react-app react-app-test
yarn create v1.10.1
[1/4] 🔍 Resolving packages...
[2/4] 🚚 Fetching packages...
[3/4] 🔗 Linking dependencies...
[4/4] 📃 Building fresh packages...
success Installed "create-react-app@2.0.3" with binaries:
- create-react-app
[##################################################################-] 66/67
Creating a new React app in /Users/mlone/code/node/react_pg/learning-react/react-app-test.

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

yarn add v1.10.1
[1/4] 🔍 Resolving packages...
[2/4] 🚚 Fetching packages...
error An unexpected error occurred: "https://registry.yarnpkg.com/@xtuc/ieee754/-/ieee754-1.2.0.tgz: Request failed "404 Not Found"".
info If you think this is a bug, please open a bug report with the information provided in "/Users/mlone/code/node/react_pg/learning-react/react-app-test/yarn-error.log".
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 /Users/mlone/code/node/react_pg/learning-react/react-app-test has failed.

Deleting generated file... package.json
Deleting generated file... yarn.lock
Done.
error Command failed.
Exit code: 1
Command: /usr/local/bin/create-react-app
Arguments: react-app-test
Directory: /Users/mlone/code/node/react_pg/learning-react
Output:

info Visit https://yarnpkg.com/en/docs/cli/create for documentation about this command.

[miraage]

We can clearly see that package @xtuc/ieee754 exists. You can even follow the link with tgz from the error.
I believe it is a temporary error either with your network or package registry.

[mlone]

Thank you. You pointed me in the right direction. We have an internal .npmrc with specific settings causing the 404s. Updating it per our documentation corrected the issue.

[thisconnect]

Same error with ie754-1.2.0 404 not found. After removing .npmrc it could successfully install

my .npmrc only contained

_auth=<TOKEN>
email=<EMAIL>
//registry.npmjs.org/:_authToken=<TOKEN>

:/

[aclavin-eab]

Had the same issue, it was the _auth field causing ours, but we use npm, we had to downgrade our webpack to not have this problem. We needed _auth to use our nexus registry for npm modules, we have a ton of other npm dependencies that do fine with the _auth token being in the npmrc, maybe it's getting criss-crossed with an _auth key value pair in xutc's registry? This is an issue with that webpack dependency best I can tell.

[gergob]

I had the same issue. We have a private npm registry too which needs authentication. for me removing auth for the private registry resolved the issue, but this way I cannot use both registries...