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$ yarn create react-app web --template typescript
yarn create v1.22.5
[1/4] Resolving packages...
info There appears to be trouble with the npm registry (returned undefined). Retrying...
info There appears to be trouble with the npm registry (returned undefined). Retrying...
info There appears to be trouble with the npm registry (returned undefined). Retrying...
info There appears to be trouble with the npm registry (returned undefined). Retrying...
info There appears to be trouble with your network connection. Retrying...
info There appears to be trouble with the npm registry (returned undefined). Retrying...
[2/4] Fetching packages...
error An unexpected error occurred: "https://registry.yarnpkg.com/tmp/-/tmp-0.2.1.tgz: Request failed \"502 Bad Gateway\"".
info If you think this is a bug, please open a bug report with the information provided 
    in "C:\\Users\\Martins\\AppData\\Local\\Yarn\\Data\\global\\yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/create for documentation about this command.

Windows: 10 Node: 14.11.0 Yarn: 1.22.5 npm: 6.14.8

RobC
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Áderis Martins
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    Do you have a `C:\Users\Martins\.npmrc` file? Try deleting that. – JBallin Nov 06 '20 at 02:30
  • Possible duplicate of [Create React App not installing, showing an error and aborting installation](https://stackoverflow.com/q/52882119/4722345). – JBallin Nov 06 '20 at 02:30

1 Answers1

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If the problem continues to occur, you can try:

$ yarn init

And after

$ yarn create react-app web --template typescript

Check also if it is within the created directory of the project.

RobC
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Áderis Martins
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