Скачать с ютуб Resolve Flutter iOS build/run error: Type 'VoidCallback' Not Found в хорошем качестве

Resolve Flutter iOS build/run error: Type 'VoidCallback' Not Found

Discover the solution to the common Flutter iOS build/run error involving 'VoidCallback' type not found, along with troubleshooting methods and recommended Flutter versions. --- This video is based on the question https://stackoverflow.com/q/76600179/ asked by the user 'markus' ( https://stackoverflow.com/u/2250186/ ) and on the answer https://stackoverflow.com/a/76608508/ provided by the user 'markus' ( https://stackoverflow.com/u/2250186/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Flutter iOS build/run error: widgets/context_menu_button_item.dart:49:9: Error: Type 'VoidCallback' not found Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Troubleshooting Flutter iOS Build/Run Errors If you're developing an iOS app using Flutter, you might encounter some frustrating build and run errors. One such error involves the message: "Type 'VoidCallback' not found." This issue has left many developers scratching their heads, as it can hinder the development process, making it critical to resolve swiftly. In this guide, we'll focus on understanding the cause of this error and outline familiar steps for a solution. Understanding the Error The error is commonly associated with specific versions of Flutter and Dart. Many users have reported similar experiences, particularly with Flutter 3.10.5 and Dart 3.0.5, where the issue arises during the initial project setup and running procedures. Reproduction Steps Developers reported encountering this error following these steps: Create a new Flutter project [[See Video to Reveal this Text or Code Snippet]] Following these steps, users observed the error messages, which indicated issues within the Flutter widget library. Analyzing the Environmental Setup It’s essential to ensure that your development environment is correctly set up. The following details can be extracted from running flutter doctor: Flutter Version: 3.10.5 Dart Version: 3.0.5 Xcode Version: 14.3.1 All necessary dependencies appear to be installed correctly. While everything might seem in order, the issue may still persist due to the specific versions being used. Suggested Solution From our investigation, this issue seems directly tied to Flutter 3.10.5 and Dart 3.0.5. Many developers have successfully overcome this problem by downgrading Flutter to version 3.7.12. Here’s how you can do it: Steps to Downgrade Flutter: Flutter Channel: Switch to the stable channel of Flutter if you haven't already. [[See Video to Reveal this Text or Code Snippet]] Downgrading Flutter: Run the following command to revert to the previous version: [[See Video to Reveal this Text or Code Snippet]] Rebuild Your Project: After downgrading, create a new project and run it again: [[See Video to Reveal this Text or Code Snippet]] Expected Outcome After following the above steps, you should experience a successful build without encountering the "Type 'VoidCallback' not found" error in your simulator. Additional Tips Check for Updates: Keep an eye on updates from Flutter for any patches that might solve this issue. Regularly check their GitHub repository for discussions on this topic. Experiment with Compatibility: If further issues arise, it might be worthwhile to experiment with different combinations of Flutter and Dart SDK versions to identify a stable setup for your project. Community Forums: Engage with community forums or discussion threads surrounding Flutter, as they can be an excellent resource for shared experiences and solutions. Conclusion Navigating build and run errors in Flutter can indeed be a challenging experience, especially when working with iOS. By downgrading Flutter to version 3.7.12, many have found relief from the "VoidCallback" missing errors. If these issues persist, consider the outlined troubleshooting steps, and remember that keeping your development environment in sync with community-reviewed stable versions is crucial. Final Note Make sure to document any issues you encounter and potential solutions to help others in the Flutter community. Together, we can improve the developer experience for everyone!