erlang_test/apps/myapp/ebin/myapp.app

{application, myapp,
 [
  {description, "test erlang application"},
  {vsn, "0.0.1"},
  {registered, [myapp_sup]},
  {applications, [kernel, stdlib]},
  {modules, [myapp, myapp_sup, myapp_events, myapp_events2, myapp_events3, test]},
  {mod, { myapp, []}},
  {env, []}
 ]}.