Ckfinder文件上传失败，错误404

Question

<script type="text/javascript">
    $(document).ready(function () {
        CKEDITOR.replace('Source',
        {
            filebrowserBrowseUrl: '@Url.Content("~/Content/ckeditor/ckfinder/ckfinder.html")',
            filebrowserImageBrowseUrl: '@Url.Content("~/Content/ckeditor/ckfinder/ckfinder.html?type=Images")',
            filebrowserFlashBrowseUrl: '@Url.Content("~/Content/ckeditor/ckfinder/ckfinder.html?type=Flash")',
            filebrowserUploadUrl: '@Url.Content("~/Content/ckeditor/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Files")',
            filebrowserImageUploadUrl: '@Url.Content("~/Content/ckeditor/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Images")',
            filebrowserFlashUploadUrl: '@Url.Content("~/Content/ckeditor/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Flash")'
        });
    });
</script>

Fileupload不起作用。我得到404例外。我该如何解决这个问题？