Solving the Unexpected Duplicate Tasks Error in Xcode When Running Flutter Projects

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Understanding and Fixing the “Unexpected Duplicate Tasks” Error in Xcode

What is the “Unexpected Duplicate Tasks” Error?

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This means that Xcode is trying to copy the same file to the same location more than once, which leads to a build failure.

How to Fix the Error: Step-by-Step Guide

To resolve this issue, follow these clear and structured steps:

1. Open Your Xcode Project

Begin by launching Xcode and opening your Flutter project. Locate and open your iOS project specifically (usually found in the ios folder of your Flutter project).

2. Navigate to Build Phases

In the Xcode project navigator, select your target (most likely named Runner).

Click on the Build Phases tab within the project settings. This section contains all the processes that Xcode uses to compile your app.

Within the Build Phases tab, find the Copy Bundle Resources section. This section lists files that should be copied to the app bundle.

4. Check for Duplicate Entries

5. Remove from Compile Sources

Select it and press the delete key or click the '-' button to remove it from this section.

6. Clean Build Folder

After making the necessary changes, it's good practice to perform a clean build. Click on Product in the top menu and select Clean Build Folder (or simply press Shift + Option + Command + K).

This helps remove any cached files that might cause conflicts.

7. Rebuild Your Project

Finally, try to build your project again by selecting Product Build from the menu. Ensure that the project builds successfully without any errors.

Conclusion

Feel free to reach out in the comments section if you have further questions or if there's a specific error you’re encountering! ⌨️