Скачать или смотреть How to Fix FormatException Error in Your Flutter ARB Files: A Detailed Guide

Are you facing the `FormatException` error with your Flutter ARB files? Discover the solution here to correct formatting issues and successfully run your project!
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This video is based on the question https://stackoverflow.com/q/72228015/ asked by the user 'Karol Wiśniewski' ( https://stackoverflow.com/u/12670768/ ) and on the answer https://stackoverflow.com/a/72228068/ provided by the user '2IIZ' ( https://stackoverflow.com/u/9990911/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Fix FormatException Error in Your Flutter ARB Files: A Detailed Guide

If you're a Flutter developer, you may have encountered a FormatException error while working with localization files, specifically .arb files. This error can halt your progress and frustrate your development workflow. In this guide, we'll delve into the reasons behind this error and provide a step-by-step solution to resolve it.

Understanding the Problem

The common issue arises from formatting errors within your .arb files when you attempt to run the command flutter pub get. In this particular scenario, the error message reads:

[[See Video to Reveal this Text or Code Snippet]]

This indicates that there is an unexpected character in your ARB file at line 439. Typically, this occurs when there is a syntax issue, such as an extraneous comma or a missing curly brace.

The Solution

To address this error, follow these steps to troubleshoot and correct the issue in your .arb file.

Step 1: Locate the Error

Identify the line mentioned in the error message. In this case, check around line 439 in the provided ARB file content.

Step 2: Review the Syntax

In a properly formatted ARB file, each key-value pair must be separated by a comma, except for the last item. Here’s a simplified example of how a portion of the ARB file should look:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Remove the Extraneous Comma

In your ARB file, look for the last entry of the file and ensure that there isn't a trailing comma after the last value. For the problematic section you shared, examine the syntax:

Before Correction

[[See Video to Reveal this Text or Code Snippet]]

Corrected Code

You simply need to remove the trailing comma after the last item. Correct it like this:

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Save and Re-run Commands

After making the correction, save the ARB file and re-run the flutter pub get command. This step will regenerate the localizations package, and the error should be resolved.

Conclusion

The FormatException error can be perplexing, especially when you're concentrating on developing your application. By understanding the formatting rules of ARB files and carefully reviewing your code, you can swiftly identify and rectify these issues.

Don't let small errors derail your progress! With these troubleshooting tips, you can maintain the momentum in your Flutter project and continue enhancing your app's localization features.

Final Thoughts

If you face any further issues or have questions regarding Flutter localization, feel free to drop a comment below. Happy coding!