Sudden TypeError: Network request failed.

[hi337]

Description

I was going to build my react native application on windows for android, just as i usually do. The app builds fine, but i quickly notice that all network requests, no matter the method, were failing. I tried many everything i could think of. I built on different devices, made sure the IP address was correct, made sure clear text traffic was enabled, updated packages. But nothing worked.

This problem came all of a sudden and I've never had any problems networking before. But i noticed that the issue was not with the server because the request wouldn't even be launched. The API I'm using is fetch btw.

React Native version:

My react native version is 0.63.4. My machine is running Windows 10. I ran the application on android 8 and 10 devices with the same error.

System:
OS: Windows 10 10.0.19042
CPU: (8) x64 Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz
Memory: 9.76 GB / 15.79 GB
Binaries:
Node: 15.5.0 - C:\Program Files\nodejs\node.EXE
Yarn: Not Found
npm: 7.6.3 - C:\Program Files\nodejs\npm.CMD
Watchman: Not Found
SDKs:
Android SDK:
API Levels: 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
Build Tools: 28.0.3, 29.0.2, 30.0.2, 30.0.3
System Images: android-27 | Google Play Intel x86 Atom, android-29 | Intel x86 Atom, android-29 | Google Play Intel x86 Atom
Android NDK: Not Found
Windows SDK:
AllowDevelopmentWithoutDevLicense: Enabled
AllowAllTrustedApps: Enabled
Versions: 10.0.17763.0, 10.0.18362.0
IDEs:
Android Studio: Version 4.1.0.0 AI-201.8743.12.41.7199119
Visual Studio: 16.8.30907.101 (Visual Studio Community 2019)
Languages:
Java: 1.8.0_275 - C:\Program Files\OpenJDK\openjdk-8u275-b01\bin\javac.EXE
Python: 3.8.6 - C:\Users\rateb\AppData\Local\Programs\Python\Python38\python.EXE
npmPackages:
@react-native-community/cli: Not Found
react: 16.13.1 => 16.13.1
react-native: 0.63.4 => 0.63.4
react-native-windows: Not Found
npmGlobalPackages:
react-native: Not Found

Steps To Reproduce

I will continue to fiddle around and and work on steps to reproduce this error. But as mentioned earlier, these errors came from nowhere and it was working just fine yesterday.

Expected Results

N/A

Please help. I am willing to give code examples and more system information. Thanks in advance.

[hi337]

never mind. I fixed this error by making a new react native application and moving all my app folder from the old projects to the new one, replacing the app.js folder in the new app with the old one, and installing deps. I guess the errors came from not updating packages the right way.