You also need to start cowlib

[jchukwum]

Continuing from my previous bug posting a few minutes ago. I also think you need to add application:start(cowlib) in src/ezwebframe.erl.

It's a dependency to cowboy and needs to be running. Suggested update is the line in bold:

...
ok = application:start(crypto),
ok = application:start(ranch),
ok = application:start(cowlib),
ok = application:start(cowboy),
ok = web_server_start(Port, Dispatch).
...

Thanks

John Chukwuma