Software⏱️ 2 min read📅 2026-05-31

How to Fix error code 65 Error – error Failed to build iOS project. We ran "xcodebuild" command but it exited with error code 65

Failed to build iOS project with error code 65, sudden issue after working code.

Quick Answer: Try cleaning the Xcode project and re-running react-native run-ios. If issues persist, try deleting DerivedData folder in Xcode's Preferences.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🛠️ Step-by-Step Verified Fixes
  3. ✨ Wrapping Up

The error message 'Failed to build iOS project. We ran "xcodebuild" command but it exited with error code 65' can be caused by a variety of factors, including a corrupted Xcode project file, an outdated or incompatible version of Xcode, or a missing required dependency.

🛑 Root Causes of the Error

  • Corrupted Xcode project file
  • Outdated or incompatible version of Xcode
  • Missing required dependency

🛠️ Step-by-Step Verified Fixes

Method 1: Clean and Rebuild the Project

  1. Step 1: Open Xcode and go to Product >Clean Build Folder.
  2. Step 2: Then, go to Product >Build >Build again.

Method 2: Update Xcode and Dependencies

  1. Step 1: Open the Terminal and run xcrun --sdk ios12 --find system-version to check the current SDK version.
  2. Step 2: If the SDK version is outdated, update Xcode using Software Update in System Preferences.

✨ Wrapping Up

By following these steps, you should be able to resolve the error and successfully build your iOS project.

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