Скачать или смотреть How to Resolve xcodebuild Errors in macOS when Using Crashlytics

Learn how to fix xcodebuild errors related to Crashlytics in a macOS application. This guide will help you pass a scheme correctly and prevent build failures.
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This video is based on the question https://stackoverflow.com/q/76456944/ asked by the user 'BlackM' ( https://stackoverflow.com/u/776720/ ) and on the answer https://stackoverflow.com/a/76477623/ provided by the user 'ncooke3' ( https://stackoverflow.com/u/9331576/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Resolving xcodebuild Errors in macOS when Using Crashlytics

If you're developing a macOS application that integrates Crashlytics for crash reporting, you might encounter some hurdles when building your project with xcodebuild. One common problem is the error messages that arise when you try to build from the command line. In this post, we'll dive into how to troubleshoot and resolve these errors effectively.

The Problem

After successful installation of Crashlytics, you might experience an issue where running the command:

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

yields various errors related to directory structure and file existence. Notably, you might see messages like:

error: File exists but is not a directory

** BUILD FAILED **

These can be frustrating, especially when the build works smoothly within the Xcode UI but fails when using the command line.

Understanding the Cause

This issue often stems from how xcodebuild manages build directories and dependencies, particularly when dealing with Swift Package Manager (SPM) packages like nanopb. When xcodebuild is executed without specifying certain configurations, it might try to access directories that are either misconfigured or corrupted due to previous builds.

Key Points:

Manual Target Order Warning: When you do not specify the build order, xcodebuild may default to an outdated system that can cause conflicts.

Directory Conflicts: If there are existing files where directories are expected, it can prevent the correct creation of build directories.

The Solution

To resolve these build issues with xcodebuild, you can take several steps.

1. Pass the Scheme

One of the most effective solutions is to specify a scheme during the xcodebuild command execution. This can drastically change where the build artifacts are placed, helping avoid conflicts with the SPM checkouts.

Here’s how to do it:

List Valid Schemes: First, you need to know the available schemes in your project. Run the following command in your terminal, within your project directory:

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

Run xcodebuild with the Scheme: Use the scheme name you obtained from the previous step to invoke xcodebuild. Replace YOUR_SCHEME_HERE with the actual scheme name:

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

2. Check for Existing Directories

Navigate to the Derived Data folder and inspect if the problematic directories already exist. You might need to delete or rename them to ensure that xcodebuild can create new, clean directories.

3. Handle Warnings

While resolving the primary errors, also be mindful of the warnings that appear in your log:

SwiftLint and Firebase Script Phases: You may want to add output paths to these script phases or adjust their settings to avoid them being run on every build unnecessarily, which can also lead to longer build times.

Conclusion

Encountering build errors with xcodebuild can be quite challenging, especially when it seems to work fine in Xcode. However, by specifying a scheme and checking existing directories, you can address these issues effectively. This will make your development and debugging process smoother, allowing you to focus more on improving your app with Crashlytics integration.

Now, when you build your macOS app with Crashlytics using xcodebuild, you can do so with confidence! Remember to check the build logs for any stray warnings and address them as needed to keep your project healthy.