You have ettempted to queue to many files.You may select one

<script type="text/javascript" src="/script/swfupload/swfupload.js"></script>
<script type="text/javascript" src="/script/swfupload/swfupload.queue.js"></script>
<script type="text/javascript" src="/script/swfupload/handlers.js"></script>

var swfu = new SWFUpload({
upload_url: "http://www.aa.com/changeFile",// 文件上传 地址
post_params: {"name" : "huliang"},// File Upload Settings
file_size_limit : "10 MB",// 1000MB
file_types : "*.doc;*.docx",file_types_description : "文档",file_upload_limit : "1",// 限制文件上传个数 为 1

file_queue_error_handler : fileQueueError,file_dialog_complete_handler : fileDialogComplete,//选择好文件后提交
// file_queued_handler : fileQuened,upload_progress_handler : uploadProgress,upload_error_handler : uploadError,upload_success_handler : uploadSuccess,upload_complete_handler : uploadComplete,button_action:SWFUpload.BUTTON_ACTION.SELECT_FILE,// Button Settings
// button_image_url : "images/SmallSpyGlassWithTransperancy_17x18.png",button_placeholder_id : "uploadfile",button_width: 180,button_height: 18,button_text : '<span class="blue">上传</span>',button_text_style : '.blue{color:#0099cc;text-align:center;}',button_text_top_padding: 0,button_text_left_padding: 18,button_window_mode: SWFUpload.WINDOW_MODE.TRANSPARENT,button_cursor: SWFUpload.CURSOR.HAND,// Flash Settings
flash_url : "/script/swfupload/swfupload.swf",custom_settings : {
upload_target : "divFileProgressContainer"
},// Debug Settings
debug: false  //是否显示调试窗口
});
// 选择文件后，立即提交
function fileDialogComplete(){
swfu.startUpload();
}
// 文件上传成功后，回调函数
function uploadSuccess(file,serverData){
alert(serverData);
myalert(0,"上传成功",function(){
<span style="color:#ff0000;">var stats = swfu.getStats();
        stats.successful_uploads = 0;
        swfu.setStats(stats);</span>
       
});
}
// 文件上传失败，回调函数
function uploadError(){
myalert(0,"上传失败");
swfu.cleanUp();
}
<pre name="code" class="plain"><span style="color:#ff0000;">当上传 1 个文件后，还想在上传，就会报 文件太多的错误，解决方法如下：
var stats = swfu.getStats();
stats.successful_uploads = 0;
swfu.setStats(stats);
这样就可以无限制的上传了。。</span>