[bug]: Snackbar does't work in flutter 3.38.1

[ajnaf]

Describe the bug

[ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: No Overlay widget found. Some widgets require an Overlay widget ancestor for correct operation. The most common way to add an Overlay to an application is to include a MaterialApp, CupertinoApp or Navigator widget in the runApp() call. The context from which that widget was searching for an overlay was: _Theater

What operating system do you use?

macOS

Information about the installed tooling

✓] Flutter (Channel stable, 3.38.1, on macOS 26.1 25B78 darwin-arm64, locale en-LY) [563ms]
• Flutter version 3.38.1 on channel stable at /Users/a.elajnaf/Development/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision b45fa18946 (27 hours ago), 2025-11-12 22:09:06 -0600
• Engine revision b5990e5ccc
• Dart version 3.10.0
• DevTools version 2.51.1
• Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios,
cli-animations, enable-native-assets, omit-legacy-version-file, enable-lldb-debugging

[!] Android toolchain - develop for Android devices (Android SDK version 35.0.1) [1,619ms]
• Android SDK at /Users/a.elajnaf/Library/Android/sdk
• Emulator version 35.4.9.0 (build_id 13025442) (CL:N/A)
✗ Flutter requires Android SDK 36 and the Android BuildTools 28.0.3
To update the Android SDK visit https://flutter.dev/to/macos-android-setup for detailed instructions.
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses

[✓] Xcode - develop for iOS and macOS (Xcode 16.4) [1,222ms]
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 16F6
• CocoaPods version 1.16.2

[✓] Chrome - develop for the web [7ms]
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Connected device (2 available) [10.6s]
• macOS (desktop) • macos • darwin-arm64 • macOS 26.1 25B78 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 142.0.7444.162

Steps to reproduce the issue

1. Install flutter 3.38.1
2. Call a snackbar

Expected behavior

No response

Screenshots

No response

Additional Context

I fixed it by adding the code below to MaterialApp.router in main.dart
builder: (context, child) { return Overlay( initialEntries: [OverlayEntry(builder: (context) => child!)], ); },

[AbdullahChauhan]

Hey @ajnaf I hope you are doing well.

I've opened the PR related to this in the services repository.
Waiting for the merge. Until then, you can use it like this:

stacked_services:
git:
url: https://github.com/AbdullahChauhan/Stacked-Services.git
ref: bump/get-dependency

[dvagala]

@FilledStacks any update on this?