Проблема реализации Uploadify с Laravel 4

Редакция:

Я хочу использовать uploadify в laravel 4. Я застрял, так как я только получил ошибку 500 Http, и я не узнал почему.

Итак, вот мой код:

Форма:

{{Form::open(array('action' => 'ProfileController@postUploadPicture2','files'=> true,'id'=>'uploadform2'))}}

            {{ Form::file('file_upload',$attributes = array('id'=>'file_upload')) }}

{{ Form::token() }}

{{ Form::close() }}

Сценарий добавления:

<script>
$(document).ready(function() {
    var url = $("#uploadform2").attr('action');
    setTimeout(function() {//referencias: http://stackoverflow.com/a/25135325/1883256
        $('#file_upload').uploadify({
            'fileTypeDesc' : 'Image Files',
            'fileTypeExts' : '*.gif; *.jpg; *.png',
            'debug'        :'true',
            'swf'      : '../swf/uploadify.swf',
            'uploader' : url, //debe redireccionar al controlador
            'onFallback' : function() {
                                    alert('Flash player no detected.');
                                    },
            'method'   : 'post',
            'width'    : 150,//ancho del botón de browser
            'buttonText' : 'Choose your file...',
            'onUploadError' : function(file, errorCode, errorMsg, errorString) {
                                            alert(':-( The file ' + file.name + ' could not be sent. There was the following error: ' + errorString + ' Mensaje: '+ errorMsg + ' código: '+errorCode + ' File: '+ file);
                                            }
            // Put your options here
        });
    },0);
});
</script>

Маршруты:

/*
*Upload user picture AJAX (GET) 
*/
Route::get('/edit/upload_picture2',array(
        'as'    => 'user-upload-photo2',
        'uses'  => 'ProfileController@getUploadPicture2'
));

        /*
    /Upload user picture AJAX Uploadify (POST)
    */
    Route::post('/edit/upload_picture2',array(
        'as'    => 'user-upload-photo-post2',
        'uses'  => 'ProfileController@postUploadPicture2'
    ));

И контроллер (в режиме тестирования), где я ожидаю показать мне сообщение:

public function postUploadPicture2(){
return 'posted and reached!';     
}

Я получаю HTTP-ошибку 500 и код -200.

Отладочная информация показывает следующее: Открытие uploadify:

---SWFUpload Instance Info---
Version: 2.2.0 2009-03-25
Movie Name: SWFUpload_0
Settings:
    upload_url:               http://localhost/cimmgm/public/edit/upload_picture2
    flash_url:                ../swf/uploadify.swf?preventswfcaching=1420936888141
    use_query_string:         false
    requeue_on_error:         false
    http_success:             
    assume_success_timeout:   30
    file_post_name:           Filedata
    post_params:              [object Object]
    file_types:               *.gif; *.jpg; *.png
    file_types_description:   Image Files
    file_size_limit:          0
    file_upload_limit:        0
    file_queue_limit:         999
    debug:                    true
    prevent_swf_caching:      true
    button_placeholder_id:    file_upload
    button_placeholder:       Not Set
    button_image_url:         /cimmgm/public/edit/
    button_width:             150
    button_height:            30
    button_text:              
    button_text_style:        color: #000000; font-size: 16pt;
    button_text_top_padding:  0
    button_text_left_padding: 0
    button_action:            -110
    button_disabled:          false
    custom_settings:          [object Object]
Event Handlers:
    swfupload_loaded_handler assigned:  false
    file_dialog_start_handler assigned: true
    file_queued_handler assigned:       true
    file_queue_error_handler assigned:  true
    upload_start_handler assigned:      true
    upload_progress_handler assigned:   true
    upload_error_handler assigned:      true
    upload_success_handler assigned:    true
    upload_complete_handler assigned:   true
    debug_handler assigned:             true

SWF DEBUG: SWFUpload Init Complete
SWF DEBUG: 
SWF DEBUG: ----- SWF DEBUG OUTPUT ----
SWF DEBUG: Build Number:           SWFUPLOAD 2.2.0
SWF DEBUG: movieName:              SWFUpload_0
SWF DEBUG: Upload URL:             http://localhost/cimmgm/public/edit/upload_picture2
SWF DEBUG: File Types String:      *.gif; *.jpg; *.png
SWF DEBUG: Parsed File Types:      gif,jpg,png
SWF DEBUG: HTTP Success:           0
SWF DEBUG: File Types Description: Image Files (*.gif; *.jpg; *.png)
SWF DEBUG: File Size Limit:        0 bytes
SWF DEBUG: File Upload Limit:      0
SWF DEBUG: File Queue Limit:       999
SWF DEBUG: Post Params:
SWF DEBUG: ----- END SWF DEBUG OUTPUT ----
SWF DEBUG: 

Попытка загрузить файл:

SWF DEBUG: Event: fileDialogStart : Browsing files. Multi Select. Allowed file types: *.gif; *.jpg; *.png
SWF DEBUG: Select Handler: Received the files selected from the dialog. Processing the file list...
SWF DEBUG: Event: fileQueued : File ID: SWFUpload_0_0
SWF DEBUG: Event: fileDialogComplete : Finished processing selected files. Files selected: 1. Files Queued: 1
SWF DEBUG: StartUpload: First file in queue
SWF DEBUG: Event: uploadStart : File ID: SWFUpload_0_0
SWF DEBUG: ReturnUploadStart(): File accepted by startUpload event and readied for upload.  Starting upload to http://localhost/cimmgm/public/edit/upload_picture2 for File ID: SWFUpload_0_0
SWF DEBUG: Event: uploadProgress (OPEN): File ID: SWFUpload_0_0
SWF DEBUG: Event: uploadProgress: File ID: SWFUpload_0_0. Bytes: 39446. Total: 39446
SWF DEBUG: Event: uploadError: HTTP ERROR : File ID: SWFUpload_0_0. HTTP Status: 500.
SWF DEBUG: Event: uploadComplete : Upload cycle complete.

Как я могу это исправить? Что мне не хватает?