@Controller 报错，以下是代码片段

[weijian702]

import { Controller } from "egg";
/**
*@controller eccmimutecd
*/

class EccmimutecdController extends Controller {
/**

• @summary text
• @description test
• @router get /api/vi/eccmimutecd/index
• @request body string starttime
• @response 200 Jsonbody ok
  */
  public async index() {
  const { ctx } = this; // 当前请求的上下文 Context 对象实例
  const Op = require("Sequelize").Op; // 获取sequelize的Op 属性
  const body = ctx.request.body; // 获取请求body
  const starttime = body.starttime; // 获取请求body 的starttime值
  const endtime = body.endtime; // 获取请求body 的endtime 值
  const data = await ctx.model.EccmonMimuteCd.findAll({
  where: {
  time: { [Op.between]: [starttime, endtime] },
  },
  });
  this.Jsonbody(data);
  }
  Jsonbody(data) {
  this.ctx.body = {
  code: 200,
  result: data,
  msg: "sucess",
  };
  }
  }

module.exports = EccmimutecdController;

contract:

request.ts:
module.exports = {
EccmonMimuteCd: {
starttime: { type: 'string', required: true, example: '2020-06-24 10:00:01' },

}

}
response.ts:
module.exports = {
JsonBody: {
result:{ type: 'string'},
}
}

错误信息：
020-06-24 18:31:39,629 ERROR 177792 [-/127.0.0.1/-/0ms GET /] nodejs.TypeError: Cannot read property 'prototype' of undefined
at generateAPIFunc (D:\egg-example\init\node_modules\egg-swagger-doc\lib\document\index.js:190:22)
at getTag_Path (D:\egg-example\init\node_modules\egg-swagger-doc\lib\document\index.js:115:18)
at buildDocument (D:\egg-example\init\node_modules\egg-swagger-doc\lib\document\index.js:50:14)
at documentInit (D:\egg-example\init\node_modules\egg-swagger-doc\lib\document\index.js:497:7)
at module.exports.swaggerInit (D:\egg-example\init\node_modules\egg-swagger-doc\lib\index.js:10:3)
at D:\egg-example\init\node_modules\egg-swagger-doc\app.js:8:5
at Object.callFn (D:\egg-example\init\node_modules\egg-core\lib\utils\index.js:44:42)
at D:\egg-example\init\node_modules\egg-core\lib\lifecycle.js:256:13
at processTicksAndRejections (internal/process/task_queues.js:79:11)