Resolving the “Multiple Commands Produce” Error in Xcode 10

28 February 2025 Stephan Petzl Leave a comment Xcode

Encountering the “Multiple commands produce” error in Xcode 10 can be a common hurdle for developers transitioning from Xcode 9. This error typically arises due to conflicts in file handling during the build process, often related to duplicate file entries in the build phases. Below, we explore the most effective solutions to tackle this issue.

Understanding the Error

The error message indicates that multiple commands are attempting to produce the same file, typically Info.plist, during the build process. This can happen if the file is included multiple times in the build phases, either in the “Copy Bundle Resources” or if the project is using a new build system that conflicts with existing configurations.

Solution: Remove Duplicate Info.plist Entries

The most straightforward solution involves removing duplicate entries of Info.plist from the build phases:

1. Open your project in Xcode.
2. Select your target from the “Targets” list.
3. Navigate to Build Phases.
4. Expand the Copy Bundle Resources section.
5. Remove any instances of Info.plist from this section.

If your project includes a watch app or other extensions, ensure that Info.plist is removed from their respective “Copy Bundle Resources” sections as well.

Alternative Solutions

If removing duplicate entries of Info.plist does not resolve the issue, consider these alternative approaches:

• Use Legacy Build System: Although deprecated in later versions, switching to the Legacy Build System can resolve certain conflicts.
  • Go to File > Project/Workspace Settings.
  • Select Legacy Build System under the Build System dropdown.
• Check for Duplicate File Names: Ensure that there are no files with identical names across different targets that may be causing conflicts.

Integrating Automated Testing with Repeato

While resolving build errors is crucial, ensuring that your app functions flawlessly after these changes is equally important. This is where automated testing becomes invaluable. Repeato, a no-code test automation tool, enables you to create, run, and maintain tests for iOS, Android, and web apps with ease.

Repeato’s test recorder simplifies the process of recording tests, making it faster and more efficient. With support for data-driven and keyword-driven testing, Repeato allows you to handle complex test scenarios without writing code. Additionally, all test data is stored in text and JSON format, facilitating version control and collaboration.

By integrating Repeato into your development workflow, you can ensure that any changes made to resolve build issues do not inadvertently affect the functionality of your application. Explore our documentation for advanced testing techniques and learn how Repeato can enhance your testing strategy.

Check it out!

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