FineUploader中的删除文件事件出现问题

Question

我在FineUploader中删除文件时遇到问题。我该怎么办？我已经尝试过此解决方案，但是它无法正常工作，并且出现一些错误，例如“无法读取null的属性'className'”。

'use strict';
import $ from 'jquery';
import qq from 'fine-uploader';

$('.file-uploader-wrap').each(function (index) {
    new qq.FineUploader({
        element: this,
        request: {
            endpoint: "/_uploader/career/upload"
        },
        chunking: {
            enabled: true,
            partSize: 200000
        },
        multiple: false,
        validation: {
            acceptFiles : ["application/pdf", "application/x-pdf", "application/msword", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"]
        },
        deleteFile: {
            enabled: true,
            endpoint: "/server/upload",
        },
        callbacks : {
            onComplete : function (a,b,c) {
                if(c.success){
                    $("#cv_files_patch"+(index+1)).val(c.fileName);
                }
            },
            onSubmitDelete : function (id) {
                qq(this.getItemByFileId(id)).remove();
            }
        }

    });
});