Hot restart/reload not always working in flutter

Question

I think it has something to do with this warning I keep getting from dart sdk

Socket error: FileSystemException: Directory watcher closed unexpectedly, path = 
'c:\Users\Saad\OneDrive\Documents\Scripts\mutanafisun'

I searched for a solution for it but found none.

this is my flutter doctor

[√] Flutter (Channel stable, 3.0.5, on Active code page: 1252
Microsoft Windows [Version 10.0.19044.1826], locale en-US)   
• Flutter version 3.0.5 at C:\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision f1875d570e (4 weeks ago), 2022-07-13 11:24:16 -0700
• Engine revision e85ea0e79c
• Dart version 2.17.6
• DevTools version 2.12.2

Checking Java status is taking a long time...[√] Android toolchain - develop for Android 
devices (Android SDK version 31.0.0)
• Android SDK at C:\Users\Saad\AppData\Local\Android\sdk
• Platform android-31, build-tools 31.0.0
• Java binary at: C:\Program Files\Java\jdk-14\bin\java
• Java version Java(TM) SE Runtime Environment (build 14+36-1461)
• All Android licenses accepted.

[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

 [√] Visual Studio - develop for Windows (Visual Studio Build Tools 2022 17.2.3)
• Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools
• Visual Studio Build Tools 2022 version 17.2.32526.322
• Windows 10 SDK version 10.0.19041.0

[!] Android Studio (not installed)
• Android Studio not found; download from 
 https://developer.android.com/studio/index.html
  (or visit https://flutter.dev/docs/get-started/install/windows#android-setup for 
  detailed instructions).

[√] VS Code (version 1.70.1)
• VS Code at C:\Users\Saad\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.46.0

Answer 1

This seems to be a bug in the current Dart/Flutter releases.

Here is a full discussion: https://github.com/dart-lang/sdk/issues/49286

Also see confirmation that fix has been found but not yet released: https://github.com/Dart-Code/Dart-Code/issues/4077