package R does not exist

[nouser000]

I have created a new project, added the package and when I run it it shows me the error:
error: package R does not exist

Log:

C:\Users\myuser\AppData\Local\Pub\Cache\hosted\pub.dev\ultralytics_yolo-0.0.3\android\src\main\java\com\ultralytics\ultralytics_yolo\NativeView.java:30: error: package R does not exist
        view = LayoutInflater.from(context).inflate(R.layout.activity_tflite_camera, null);
                                                     ^
C:\Users\myuser\AppData\Local\Pub\Cache\hosted\pub.dev\ultralytics_yolo-0.0.3\android\src\main\java\com\ultralytics\ultralytics_yolo\NativeView.java:31: error: package R does not exist
        mPreviewView = view.findViewById(R.id.previewView);
                                          ^
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
2 errors

FAILURE: Build failed with an exception.

Flutter Version 3.24.5
Dart 3.5.4
Java version 18.0.2.1
Gradle 8.3

[pderrenger]

👋 Hello @nouser000, thank you for submitting a ultralytics/yolo-flutter-app 🚀 Issue. To help us address your concern efficiently, please ensure you've provided the following information:

1. For bug reports:

   • A clear and concise description of the bug, which you've provided (thank you 😊)
   • A minimum reproducible example https://docs.ultralytics.com/help/minimum_reproducible_example/ that demonstrates the issue. This will help us accurately reproduce and debug your issue.
   • Your environment details (e.g., OS version, Flutter version, Android Studio version, package versions, etc.)
   • Expected behavior vs. actual behavior of the application
   • Complete error messages or logs if possible, which you've partially shared (it’s helpful if you provide the full log for more context).

2. For troubleshooting:

   • Ensure all build configurations (like Gradle settings, project dependencies) are correctly set up. If you're unsure, please provide details about the steps you followed to integrate the package so we can pinpoint potential issues.

3. For questions:

   • If you’re seeking clarification on usage, configuration, or error handling, please share what documentation or resources you've already reviewed. For example, have you consulted the documentation or existing examples?

Please double-check similar issues in the Issues page to avoid duplicates. If the problem persists, feel free to update this thread with additional details.

Rest assured, an Ultralytics engineer will review this issue shortly and assist you further. Thanks again for contributing and helping us improve the project! 🚀

[nouser000]

Windows 11
package version: ultralytics_yolo: ^0.0.3
Flutter Version 3.24.5
Dart 3.5.4
Java version 18.0.2.1
Gradle 8.3

[glenn-jocher]

@john-rocky can you take a look at this please?

[aftercxde]

same error here

[pderrenger]

Thank you for confirming. Please ensure you're using the latest version of the ultralytics_yolo package. Additionally, try running flutter clean, then rebuild the project to regenerate the R class. If the issue persists, double-check your Gradle and dependency setup. Let us know if further clarification is needed!

[john-rocky]

@nouser000 @aftercxde
Thanks for getting in contact!
If you want to use it as a module in another app, try importing R explicitly.

import com.ultralytics.ultralytics_yolo.R;