I am having trouble starting the cowboy application it is giving me following error. For some reason the ranch is not starting, although I have added code to start the ranch in my application.
I see a new git repo cowlib being pulled. but still having trouble.
1> application:start(satomi).
{error,
{bad_return,
{{satomi_app,start,[normal,[]]},
{'EXIT',
{noproc,
{gen_server,call,
[ranch_sup,
{start_child,
{{ranch_listener_sup,http},
{ranch_listener_sup,start_link,
[http,100,ranch_tcp,
[{port,9090}],
cowboy_protocol,
[{...}]]},
permanent,5000,supervisor,
[ranch_listener_sup]}},
infinity]}}}}}}
=INFO REPORT==== 12-Sep-2013::11:42:46 ===
application: satomi
exited: {bad_return,
{{satomi_app,start,[normal,[]]},
{'EXIT',
{noproc,
{gen_server,call,
[ranch_sup,
{start_child,
{{ranch_listener_sup,http},
{ranch_listener_sup,start_link,
[http,100,ranch_tcp,
[{port,9090}],
cowboy_protocol,
[{env,
[{dispatch,
[{'_',[],[{[],[],toppage_handler,[]}]}]}]}]]},
permanent,5000,supervisor,
[ranch_listener_sup]}},
infinity]}}}}}
type: temporary
Following is my app.src
>cat satomi.app.src
{application, satomi,
[
{description, ""},
{vsn, "1"},
{registered, []},
{applications, [
kernel,
stdlib,
cowboy
]},
{mod, { satomi_app, []}},
{env, []}
]}.
>cat satomi.erl
-module(satomi).
-export([start/0]).
start()->
ok = application:start(crypto),
ok = application:start(sasl),
ok = application:start(ranch),
ok = application:start(cowlib),
ok = application:start(cowboy),
ok = application:start(satomi).
I am trying to figure out what's going wrong here
Can anyone point me to the working sample of cowboy that I can use as a template. I am using rebar to compile the code. I don't think that should make any difference. I am using following command to start the application
erl -pa ./ebin ./deps/*/ebin
When calling application:start(satomi)
from the shell it doesn't automatically start the applications it depends on, those need to be started manually. The satomi:start/0
function you have does exactly this, so the solution is to call satomi:start()
from the shell.
The reason is that application:start(satomi)
will actually not call satomi:start()
, it is a convenience method for starting the application and its dependencies when the application is not part of an Erlang release.
UPDATE: Since Erlang R16B02, there is also application:ensure_all_started . It starts all the dependencies automatically.
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