npm ERR! Code E404

Olá, Flávio! Tudo bom? Eu vi que você digitou npx creat-react-app mas o correto é npx create-react-app. Tente novamente e veja se isso resolve seu problema. Abraços!

Olá Neilton Obrigado por mostrar o meu erro de digitação. Mas quando fui digitar de forma correta, ainda continuava o mesmo problema até que, fiz dessa forma: npx create-react-app alura-studies --template typescript aí então começou a criar a pasta com a mensagem: Creating a new React app in c:\Users\Flavio Alcantara\alura-studies, e começou a instalar os packages e reats.

No final deu essa mensagem: added 1353 package in 1m 171 packages are looking for funding run npm fund for details

Initialized a git repository.

Installing template dependencies using npm... npm ERR! code ERESOLVE npm ERR! ERESOLVE unable to resolve dependency tree npm ERR! npm ERR! While resolving: alura-studies@0.1.0 npm ERR! Found: react@18.0.0 npm ERR! node_modules/react npm ERR! react@"^18.0.0" from the root project npm ERR! npm ERR! Could not resolve dependency: npm ERR! peer react@"<18.0.0" from @testing-library/react@12.1.5 npm ERR! node_modules/@testing-library/react npm ERR! @testing-library/react@"^12.0.0" from the root project npm ERR! npm ERR! Fix the upstream dependency conflict, or retry npm ERR! this command with --force, or --legacy-peer-deps npm ERR! to accept an incorrect (and potentially broken) dependency resolution. npm ERR! npm ERR! See C:\Users\Flavio Alcantara\AppData\Local\npm-cache\eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\Flavio Alcantara\AppData\Local\npm-cache_logs\2022-04-11T22_59_25_438Z-debug-0.log npm install --no-audit --save @testing-library/jest-dom@^5.14.1 @testing-library/react@^12.0.0 @testing-library/user-event@^13.2.1 @types/jest@^27.0.1 @types/node@^16.7.13 @types/react@^17.0.20 @types/react-dom@^17.0.9 typescript@^4.4.2 web-vitals@^2.1.0 failed

Depois entrei na pasta digitando: cd alura-studies e digitei npm start onde apareceu a mensagem: > alura-studies@0.1.0 start e > react-script start

Depois apareceu esse ERROR Monstruoso:

(node:4868) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option. (Use node --trace-deprecation ... to show where the warning was created) (node:4868) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option. Starting the development server...

Failed to compile.

Module not found: Error: Can't resolve './App' in 'C:\Users\Flavio Alcantara\alura-studies\src' asset static/js/bundle.js 1.58 MiB [emitted] (name: main) 1 related asset asset index.html 1.67 KiB [emitted] asset asset-manifest.json 190 bytes [emitted] runtime modules 28.5 KiB 14 modules modules by path ./node_modules/ 1.47 MiB 95 modules modules by path ./src/ 5.9 KiB ./src/index.tsx 1.8 KiB [built] [code generated] ./src/index.css 2.72 KiB [built] [code generated] ./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[1]!./node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[2]!./node_modules/source-map-loader/dist/cjs.js!./src/index.css 1.37 KiB [built] [code generated]

ERROR in ./src/index.tsx 7:0-24 Module not found: Error: Can't resolve './App' in 'C:\Users\Flavio Alcantara\alura-studies\src' resolve './App' in 'C:\Users\Flavio Alcantara\alura-studies\src' using description file: C:\Users\Flavio Alcantara\alura-studies\package.json (relative path: ./src) Field 'browser' doesn't contain a valid alias configuration using description file: C:\Users\Flavio Alcantara\alura-studies\package.json (relative path: ./src/App) no extension Field 'browser' doesn't contain a valid alias configuration C:\Users\Flavio Alcantara\alura-studies\src\App doesn't exist .web.mjs Field 'browser' doesn't contain a valid alias configuration C:\Users\Flavio Alcantara\alura-studies\src\App.web.mjs doesn't exist .mjs Field 'browser' doesn't contain a valid alias configuration C:\Users\Flavio Alcantara\alura-studies\src\App.mjs doesn't exist .web.js Field 'browser' doesn't contain a valid alias configuration C:\Users\Flavio Alcantara\alura-studies\src\App.web.js doesn't exist .js Field 'browser' doesn't contain a valid alias configuration C:\Users\Flavio Alcantara\alura-studies\src\App.js doesn't exist .json Field 'browser' doesn't contain a valid alias configuration C:\Users\Flavio Alcantara\alura-studies\src\App.json doesn't exist .web.jsx Field 'browser' doesn't contain a valid alias configuration C:\Users\Flavio Alcantara\alura-studies\src\App.web.jsx doesn't exist .jsx Field 'browser' doesn't contain a valid alias configuration C:\Users\Flavio Alcantara\alura-studies\src\App.jsx doesn't exist as directory C:\Users\Flavio Alcantara\alura-studies\src\App doesn't exist webpack 5.72.0 compiled with 2 errors in 15470 ms

No entanto, uma boa noticia, o browser do internet explorer abriu e com o título - localhost:3000. Acho que vai funcionar, senão, notifico novamente. Caso funcione, dou como encerrado essa sessão.

Flávio Alcantara - Aluno Alura.

Bom pessoal, não funcionou, está dando erro de conexão com servidor e problemas com Internet Explores Edge. Para ser sincero, tá dando um monte de erro. Mas vou continuar mesmo assim, paciência.

Problema encerrado.