The error

If when launching Ansible from macOS you´ve faced the (pretty sinister) error Error: A worker was found in a dead state, its not only you. I also broke Ansible in macOS.

Crepiest error](/img/broke-ansible-macos-0.png)

This error is related to the way the OS handles the Python´s forks. Per this Stack Overflow reference.

The fix

The quickest workaround is to tell macOS to stop its shenanigans with an environment variable: export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES