Miré otras preguntas, pero no pude encontrar una solución. Mientras intentaba instalarJWT paquete recibo un error como se menciona en el título.

Estoy usando xampp versión 7.0.8 en mac os x Sierra con PHP 5.6. El error que obtengo es el siguiente.

Problem 1
    - namshi/jose 5.0.2 requires lib-openssl * -> the requested linked library openssl has the wrong version installed or is missing from your system, make sure to have the extension providing it.
    - namshi/jose 5.0.1 requires lib-openssl * -> the requested linked library openssl has the wrong version installed or is missing from your system, make sure to have the extension providing it.
    - namshi/jose 5.0.0 requires lib-openssl * -> the requested linked library openssl has the wrong version installed or is missing from your system, make sure to have the extension providing it.
    - tymon/jwt-auth 0.5.9 requires namshi/jose 5.0.* -> satisfiable by namshi/jose[5.0.0, 5.0.1, 5.0.2].
    - Installation request for tymon/jwt-auth ^0.5.9 -> satisfiable by tymon/jwt-auth[0.5.9].

Gracias.