php - Restler won't call any API methods -

restler refusing instantiate of api classes. it's saying fails on route, doesn't bother provide other useful information. installed restler via composer via "restler/framework" : "3.0.0-rc6" , created index.php looks this:

<?php  require __dir__.'/../vendor/autoload.php';  use luracast\restler\restler;  $r = new restler(); $r->addapiclass('explorer'); $r->addapiclass('play');  $r->handle(); 

in exact same directory index.php i've created file called play.php looks so:

<?php  public class play {     public function __construct() {         error_log("i called constructor!\n", 3, '/tmp/scott');     }      public function index() {         error_log("i called index\n", 3, '/tmp/scott');     } 

when call http://.../api/play never see /tmp/scott file created, , generic failure response restler:

{     "error": {         "code": 404,         "message": "not found"     },     "debug": {         "source": "routes.php:438 @ route stage",         "stages": {             "success": [                 "get"             ],             "failure": [                 "route",                 "negotiate",                 "message"             ]         }     } } 

as luracast noted in comments, had edit composer.json add stanza:

"autoload": {     "psr-0": {         "": "api"     } } 

and run composer dump-autoload