nmap stopped working with the following error message:
$ nmap XXX.YYY.ZZZ.0/24 dyld: Library not loaded: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib Referenced from: /usr/local/bin/nmap Reason: image not found Abort trap: 6
- Application: nmap (but could be any application)
- Platform: macOS Catalina
- Package manager: brew
Uninstall and reinstall nmap
$ brew uninstall nmap $ brew install nmap
This type of problem seems to happen regularly with brew. OpenSSL 1.0.0 has been removed from brew. Perhaps it does not correctly update all packages when a dependency has been removed.