typescript application routes - node.js

Question

I make simple instagram api application and I have problem with my routes, export and import. i get error TypeError: Router.use() requires a middleware function but got a undefined
at Function.use (C:\Documents\Desktop\digi.me\node_modules\express\lib\router\index.js:458:13)
at Object. (C:\Documents\Desktop\digi.me\lib\routes\routes.js:12:8)
I have two routes userRouter that go on localhost:3000
and mediaRouter that go on localhost:3000/media
my userRouter.ts
import request, { post } from "request"
import express from "express"
import { Router } from 'express';
const app = express()
const token: any = process.env.INSTAGRAM_TOKEN
export const userRouter = Router()
userRouter.get("/", (req: any, res: any) => {
const url = 'https://graph.instagram.com/17841403377847296/?access_token='+token+'&fields=account_type,media_count,username'
request({ url: url, json: true }, (error: string, response: any) => {
if(error){
res.send("unable to connect to service")
}else{
res.send("USER " + response.body.username + " HAVE " + response.body.media_count + " POSTS")
}
})
})
my mediaRouter
import request, { post } from "request"
import express from "express"
import {Post} from "../models/Post"
import { Router } from 'express';
const token: any = process.env.INSTAGRAM_TOKEN
export const mediaRouter = Router()
mediaRouter.get("/media", (req: any, res: any) => {
console.log(0);
const url = 'https://graph.instagram.com/17841403377847296/media?fields=id,media_url,timestamp&access_token='+token+''
request({ url: url, json: true }, (error:string, response: any) => {
if(error){
console.log('error');
res.send("unable to connect to service")
} else {
const array = response.body.data
var Posts: Post[] = [];
array.forEach(function (obj: any) {
Posts.push(new Post(obj.media_url, obj.timestamp))
});
res.send(Posts);
}
})
})
my routes.ts
import { Router } from 'express';
import userRouter from "./routes"
import mediaRouter from "./routes"
import express from 'express';
const app = express();
const routes = Router();
routes.use('/', userRouter);
routes.use('/media', mediaRouter);
export default routes
and my main app.ts
import express from "express"
import * as dotenv from "dotenv"
import routes from "./routes/routes"
const app = express()
dotenv.config();
//envirements variable for port
const port: any = process.env.PORT
app.use(routes);
app.use(express.json());
//Adding server to port
app.listen(port, () => {
console.log("server is listen on port 3000")
})