Understanding “Command phasescriptexecution failed with a nonzero exit code”






When working with Xcode or other development environments, you may encounter various error messages that can be frustrating and time-consuming to resolve. One such error message is “Command phasescriptexecution failed with a nonzero exit code.” This error message typically occurs during the build phase of a project and can prevent the successful compilation and execution of your code. In this article, we will explore the causes of this error, discuss potential solutions, and provide valuable insights to help you overcome this issue.

What does “Command phasescriptexecution failed with a nonzero exit code” mean?

The error message “Command phasescriptexecution failed with a nonzero exit code” indicates that a script or command executed during the build phase of your project returned a non-zero exit code. In simpler terms, it means that something went wrong during the execution of a script, causing the build process to fail.

This error message can be quite generic and does not provide specific details about the root cause of the issue. Therefore, it requires further investigation and troubleshooting to identify the underlying problem.

Common causes of “Command phasescriptexecution failed with a nonzero exit code”

There are several potential causes for this error message. Understanding these causes can help you narrow down the issue and find an appropriate solution. Here are some common reasons why you might encounter this error:

  • Missing or incorrect dependencies: If your project relies on external libraries or frameworks, it is essential to ensure that they are properly installed and configured. Missing or incorrect dependencies can lead to build failures and trigger the “Command phasescriptexecution failed with a nonzero exit code” error.
  • Build settings misconfiguration: Incorrect build settings, such as invalid paths or incompatible configurations, can cause the build process to fail. Reviewing and adjusting your project’s build settings can help resolve this issue.
  • Script errors: If your project includes custom scripts or build phases, errors within these scripts can lead to build failures. It is crucial to review and debug your scripts to identify and fix any issues.
  • Outdated software versions: Using outdated versions of Xcode, macOS, or other development tools can introduce compatibility issues and result in build failures. Keeping your software up to date can help prevent this problem.
  • Insufficient system resources: In some cases, the “Command phasescriptexecution failed with a nonzero exit code” error can occur due to insufficient system resources. This can happen if your computer does not have enough memory or processing power to complete the build process.

Resolving “Command phasescriptexecution failed with a nonzero exit code”

Now that we have identified some common causes of the “Command phasescriptexecution failed with a nonzero exit code” error, let’s explore potential solutions to resolve this issue:

1. Check and update dependencies

Start by verifying that all the dependencies required by your project are correctly installed and up to date. This includes any external libraries, frameworks, or SDKs that your project relies on. Ensure that you have the correct versions and configurations specified in your project settings.

If you are using package managers like CocoaPods or Carthage, make sure to update and install the dependencies according to their respective documentation. This can help resolve any compatibility issues and ensure a successful build.

2. Review and adjust build settings

Incorrect build settings can often lead to build failures. Take the time to review your project’s build settings and make any necessary adjustments. Pay close attention to paths, configurations, and any custom build settings that might be causing conflicts.

If you are unsure about the correct build settings, consult the documentation or seek help from online forums and communities dedicated to your development environment. Often, other developers have encountered similar issues and can provide valuable insights and solutions.

3. Debug custom scripts

If your project includes custom scripts or build phases, carefully review and debug them to identify any errors. Check for syntax issues, missing dependencies, or incorrect configurations within your scripts. Debugging tools and techniques specific to your development environment can help you pinpoint and resolve these issues.

Additionally, consider temporarily disabling or removing any custom scripts to see if the build process succeeds without them. This can help isolate the problem and determine whether the issue lies within the scripts or elsewhere in your project.

4. Update software versions

Outdated software versions can introduce compatibility issues and lead to build failures. Ensure that you are using the latest stable versions of Xcode, macOS, and any other development tools required by your project.

Regularly check for updates and install them as soon as they become available. This can help prevent known issues and ensure that you are working with the most stable and compatible software versions.

5. Optimize system resources

If you suspect that the “Command phasescriptexecution failed with a nonzero exit code” error is occurring due to insufficient system resources, there are a few steps you can take to optimize your computer’s performance:

  • Close any unnecessary applications and processes running in the background to free up memory and processing power.
  • Consider upgrading your computer’s hardware, such as adding more RAM or upgrading to a faster processor, if you frequently encounter resource-related issues.
  • Ensure that your project is not overly complex or resource-intensive. Simplifying your codebase or optimizing resource usage can help alleviate resource constraints.


The “Command phasescriptexecution failed with a nonzero exit code” error can be frustrating, but with the right approach, it can be resolved. By understanding the common causes of this error and following the suggested solutions, you can overcome this issue and successfully build your project.

Remember to regularly update your dependencies and software versions, review and adjust your build settings, debug any custom scripts, and optimize your system resources. By taking these steps, you can minimize the occurrence of this error and ensure a smooth development process.


1. Can I ignore the “Command phasescriptexecution failed with a nonzero exit code” error and continue working on my project?

It is not recommended to ignore this error and continue working on your project without resolving it. The error indicates that something went wrong during the build process, and ignoring it can lead to unexpected behavior or issues in your application. It is best to investigate and resolve the error to ensure the stability and reliability of your project.

2. I have followed all the suggested solutions, but the error still persists. What should I do?

If you have exhausted all the suggested solutions and the error still persists, it may be helpful to seek assistance from online

Ishan Malhotra
Ishan Malhotra
Ishan Malhotra is a tеch bloggеr and softwarе еnginееr spеcializing in backеnd dеvеlopmеnt and cloud infrastructurе. With еxpеrtisе in scalablе architеcturеs and cloud-nativе solutions, Ishan has contributеd to building rеsiliеnt softwarе systеms.
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