Why Am I Getting a 'dyld: Library Not Loaded' Error After Installing Node with Brew?

dyld Error: Unresolved Library Dependency after Installing Node with Brew

Upon installing Node.js with Homebrew on a Mac, users may encounter an error when attempting to run PHP:

dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib
  Referenced from: /usr/local/bin/php
  Reason: image not found

This error indicates that a required library for PHP operation is missing. It may be due to a conflict between Node.js and ICU4C (International Components for Unicode) versions.

Resolution:

1. Check Package Versions:
   Ensure that the installed ICU4C package version is compatible with PHP. If necessary, update ICU4C:

   brew upgrade icu4c

2. Upgrade Packages:
   Upgrade all Homebrew packages to ensure compatibility:

   brew upgrade

3. Clean Up Temporary Files:
   Remove any temporary files created during the installation process:

   brew cleanup

4. Reinstall PHP:
   After performing the above steps, reinstall PHP using:

   brew reinstall php

By following these instructions, the conflict between PHP and ICU4C should be resolved, allowing PHP to run successfully.

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