### Description i have deleted my node_modules fiile and packag.lock.json file and after trying to reinstall the file using the command np install it showing the error like PS C:\RealEstateApp> npm install npm error code E501 npm error 501 Not Implemented - GET https://registry.npmjs.org/@babel%2fcore npm error A complete log of this run can be found in: C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T04_55_48_215Z-debug-0.log I have been facing the issue from 2 days but I could not resolve this issue, since I am the only tech guy in my team facing this issue no one could help me with this so I reached you out to help me with this issue ### Steps to reproduce PS C:\RealEstateApp> npm install npm error code E501 npm error 501 Not Implemented - GET https://registry.npmjs.org/@babel%2fcore npm error A complete log of this run can be found in: C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T04_55_48_215Z-debug-0.log ### React Native Version PS C:\RealEstateApp> react-native -v 15.1.2 ### Output of `npx @react-native-community/cli info` ```text PS C:\RealEstateApp> npx @react-native-community/cli info npm error code E501 npm error 501 Not Implemented - GET https://registry.npmjs.org/@react-native-community%2fcli npm error A complete log of this run can be found in: C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T10_09_35_040Z-debug-0.log the date inside the logs: 0 verbose cli C:\Program Files\nodejs\node.exe C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js 1 info using npm@10.9.0 2 info using node@v22.11.0 3 silly config load:file:C:\Program Files\nodejs\node_modules\npm\npmrc 4 silly config load:file:C:\RealEstateApp\.npmrc 5 silly config load:file:C:\Users\ASUS\.npmrc 6 silly config load:file:C:\Users\ASUS\AppData\Roaming\npm\etc\npmrc 7 verbose title npm exec @react-native-community/cli info 8 verbose argv "exec" "--" "@react-native-community/cli" "info" 9 verbose logfile logs-max:10 dir:C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T10_09_35_040Z- 10 verbose logfile C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T10_09_35_040Z-debug-0.log 11 silly logfile start cleaning logs, removing 1 files 12 silly logfile done cleaning log files 13 silly packumentCache heap:4345298944 maxSize:1086324736 maxEntrySize:543162368 14 http fetch GET https://registry.npmjs.org/@react-native-community%2fcli attempt 1 failed with 501 15 http fetch GET https://registry.npmjs.org/@react-native-community%2fcli attempt 2 failed with 501 16 http fetch GET https://registry.npmjs.org/@react-native-community%2fcli attempt 3 failed with 501 17 http fetch GET 501 https://registry.npmjs.org/@react-native-community%2fcli 72878ms attempt #3 (cache skip) 18 verbose stack HttpErrorGeneral: 501 Not Implemented - GET https://registry.npmjs.org/@react-native-community%2fcli 18 verbose stack at C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-fetch\lib\check-response.js:95:15 18 verbose stack at process.processTicksAndRejections (node:internal/process/task_queues:105:5) 18 verbose stack at async RegistryFetcher.packument (C:\Program Files\nodejs\node_modules\npm\node_modules\pacote\lib\registry.js:90:19) 18 verbose stack at async RegistryFetcher.manifest (C:\Program Files\nodejs\node_modules\npm\node_modules\pacote\lib\registry.js:128:23) 18 verbose stack at async getManifest (C:\Program Files\nodejs\node_modules\npm\node_modules\libnpmexec\lib\index.js:27:22) 18 verbose stack at async missingFromTree (C:\Program Files\nodejs\node_modules\npm\node_modules\libnpmexec\lib\index.js:60:22) 18 verbose stack at async C:\Program Files\nodejs\node_modules\npm\node_modules\libnpmexec\lib\index.js:182:32 18 verbose stack at async Promise.all (index 0) 18 verbose stack at async exec (C:\Program Files\nodejs\node_modules\npm\node_modules\libnpmexec\lib\index.js:180:3) 18 verbose stack at async Npm.exec (C:\Program Files\nodejs\node_modules\npm\lib\npm.js:207:9) 19 verbose statusCode 501 20 verbose pkgid @react-native-community/cli@* 21 error code E501 22 error 501 Not Implemented - GET https://registry.npmjs.org/@react-native-community%2fcli 23 verbose cwd C:\RealEstateApp 24 verbose os Windows_NT 10.0.26100 25 verbose node v22.11.0 26 verbose npm v10.9.0 27 verbose exit 1 28 verbose code 1 29 error A complete log of this run can be found in: C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T10_09_35_040Z-debug-0.log ``` ### Screenshots and Videos 0 verbose cli C:\Program Files\nodejs\node.exe C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js 1 info using npm@10.9.0 2 info using node@v22.11.0 3 silly config load:file:C:\Program Files\nodejs\node_modules\npm\npmrc 4 silly config load:file:C:\RealEstateApp\.npmrc 5 silly config load:file:C:\Users\ASUS\.npmrc 6 silly config load:file:C:\Users\ASUS\AppData\Roaming\npm\etc\npmrc 7 verbose title npm exec @react-native-community/cli info 8 verbose argv "exec" "--" "@react-native-community/cli" "info" 9 verbose logfile logs-max:10 dir:C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T10_09_35_040Z- 10 verbose logfile C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T10_09_35_040Z-debug-0.log 11 silly logfile start cleaning logs, removing 1 files 12 silly logfile done cleaning log files 13 silly packumentCache heap:4345298944 maxSize:1086324736 maxEntrySize:543162368 14 http fetch GET https://registry.npmjs.org/@react-native-community%2fcli attempt 1 failed with 501 15 http fetch GET https://registry.npmjs.org/@react-native-community%2fcli attempt 2 failed with 501 16 http fetch GET https://registry.npmjs.org/@react-native-community%2fcli attempt 3 failed with 501 17 http fetch GET 501 https://registry.npmjs.org/@react-native-community%2fcli 72878ms attempt #3 (cache skip) 18 verbose stack HttpErrorGeneral: 501 Not Implemented - GET https://registry.npmjs.org/@react-native-community%2fcli 18 verbose stack at C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-fetch\lib\check-response.js:95:15 18 verbose stack at process.processTicksAndRejections (node:internal/process/task_queues:105:5) 18 verbose stack at async RegistryFetcher.packument (C:\Program Files\nodejs\node_modules\npm\node_modules\pacote\lib\registry.js:90:19) 18 verbose stack at async RegistryFetcher.manifest (C:\Program Files\nodejs\node_modules\npm\node_modules\pacote\lib\registry.js:128:23) 18 verbose stack at async getManifest (C:\Program Files\nodejs\node_modules\npm\node_modules\libnpmexec\lib\index.js:27:22) 18 verbose stack at async missingFromTree (C:\Program Files\nodejs\node_modules\npm\node_modules\libnpmexec\lib\index.js:60:22) 18 verbose stack at async C:\Program Files\nodejs\node_modules\npm\node_modules\libnpmexec\lib\index.js:182:32 18 verbose stack at async Promise.all (index 0) 18 verbose stack at async exec (C:\Program Files\nodejs\node_modules\npm\node_modules\libnpmexec\lib\index.js:180:3) 18 verbose stack at async Npm.exec (C:\Program Files\nodejs\node_modules\npm\lib\npm.js:207:9) 19 verbose statusCode 501 20 verbose pkgid @react-native-community/cli@* 21 error code E501 22 error 501 Not Implemented - GET https://registry.npmjs.org/@react-native-community%2fcli 23 verbose cwd C:\RealEstateApp 24 verbose os Windows_NT 10.0.26100 25 verbose node v22.11.0 26 verbose npm v10.9.0 27 verbose exit 1 28 verbose code 1 29 error A complete log of this run can be found in: C:\Users\ASUS\AppData\Local\npm-cache\_logs\2025-03-28T10_09_35_040Z-debug-0.log