Using tmux on mac

Terminal multiplexer software, such as tmux and screen, is a useful tool. When using tmux on mac, I encountered the following error.

$ tmux ls
dyld: Library not loaded: /usr/local/opt/openssl/lib/libcrypto.1.0.0.dylib
  Referenced from: /usr/local/opt/libevent/lib/libevent-2.1.6.dylib
  Reason: image not found
Abort trap: 6

With a simple Google search, it turned out that this is can be fixed by specifying a proper openssl version. With Homebrew command:

brew switch openssl 1.0.2t
Cleaning /usr/local/Cellar/openssl/1.0.2t
Opt link created for /usr/local/Cellar/openssl/1.0.2t

This happens once in a while, when I perform an update on brew packages.