I tried to follow the documentation for mercure and symfony found here but always encounter an error.
The first part :
>composer require mercure
Works with no issue but as soon as I try to do the second one, I always get the same error.
The second action:
> mercure --jwt-key='!ChangeMe!' --addr='localhost:3000' --allow-anonymous --cors-allowed-origins='*'
The error :
time="2020-12-08T17:35:14+01:00" level=info msg="Mercure started" addr="'localhost:3000'" protocol=http time="2020-12-08T17:35:14+01:00" level=fatal msg="listen tcp: lookup tcp/3000': getaddrinfow: The specified class was not found."
I have never used Mercure before so I have no idea what to do… please help
Source: Symfony Questions