How do I fix 'Multiple commands produce the same output' in Xcode/Swift?

'Multiple commands produce the same output' is a common error in Xcode/Swift when two build settings are vying to create the same output files. This usually occurs when multiple targets are set to generate the same resource files or when there are duplicate build phases in your project. Here’s how to resolve this issue:

1. **Check Build Phases**: Go to your target's Build Phases and look for duplicate entries. Ensure that you only have one instance of each file being copied.

2. **Inspect Build Settings**: Open the Build Settings tab for your target and ensure that no conflicting settings are causing the issue, such as overlapping paths for output files.

3. **Clean the Build Folder**: Sometimes, outdated build artifacts can cause this issue. Go to the menu bar, select Product > Clean Build Folder (hold down the Option key) to clear this out.

4. **Remove Duplicate Resources**: Look through your project files. If you have added resources at both the project level and target level, remove the duplicates.

5. **Review Your Dependencies**: If your project includes libraries or frameworks, ensure that none of them are contributing to duplicate resources. Adjust your dependencies accordingly.

After going through these steps, try building your project again.