Software⏱️ 2 min read📅 2026-05-31

How to Fix: Command Line Tools not working - OS X El Capitan, Sierra, High Sierra, Mojave

Invalid active developer path error when using command line tools on OS X El Capitan, Sierra, High Sierra, Mojave.

Quick Answer: Reinstall the Command Line Tools by running `sudo installer -install --package-name /Developer/CommandLineTools` in the Terminal.

The error message 'xcrun: error: invalid active developer path' indicates that the Command Line Tools are not properly installed or configured on your system. This issue can occur when upgrading from Yosemite to El Capitan, Sierra, High Sierra, or Mojave.

🛑 Root Causes of the Error

  • Missing or corrupted Command Line Tools installation.
  • Incompatible Xcode version with your system's macOS version.

🚀 How to Resolve This Issue

Method 1: Reinstalling Command Line Tools

  1. Step 1: Open the Terminal app and run the command xcode-select --install to reinstall the Command Line Tools.

Method 2: Installing Xcode

  1. Step 1: Download and install the latest version of Xcode from the Mac App Store.

✨ Wrapping Up

By following these methods, you should be able to resolve the 'xcrun: error: invalid active developer path' issue and get your Command Line Tools working properly on macOS El Capitan, Sierra, High Sierra, or Mojave.

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