![node.js - Route.post() requires a callback function but got a [object Undefined] (even though I have given the callback function) - Stack Overflow node.js - Route.post() requires a callback function but got a [object Undefined] (even though I have given the callback function) - Stack Overflow](https://i.stack.imgur.com/NS2it.png)
node.js - Route.post() requires a callback function but got a [object Undefined] (even though I have given the callback function) - Stack Overflow
Router.use() requires middleware function but got a string · Issue #2 · uzochukwueddie/footballkik · GitHub
![TIL D-09 throw new TypeError('Router.use() requires a middleware function but got a ' + gettype(fn)) TIL D-09 throw new TypeError('Router.use() requires a middleware function but got a ' + gettype(fn))](https://img1.daumcdn.net/thumb/C176x176/?fname=https://k.kakaocdn.net/dn/ucz7Z/btqAQkJwKGc/NdSLHO5LA6oTlmZcd4j3yK/img.png)
TIL D-09 throw new TypeError('Router.use() requires a middleware function but got a ' + gettype(fn))
TypeError: Router.use() requires a middleware function but got a undefined · Issue #4301 · expressjs/express · GitHub
![TypeError: Router.use() requires middleware function but got a Object | Express Node JS Error Solved - YouTube TypeError: Router.use() requires middleware function but got a Object | Express Node JS Error Solved - YouTube](https://i.ytimg.com/vi/EThPyix2zyU/sddefault.jpg)
TypeError: Router.use() requires middleware function but got a Object | Express Node JS Error Solved - YouTube
![حقيقة البرمجيات الخراب typeerror router.use requires a middleware function but got a undefined - teddyntea.com حقيقة البرمجيات الخراب typeerror router.use requires a middleware function but got a undefined - teddyntea.com](https://s3.ap-south-1.amazonaws.com/myinterviewtrainer-domestic/public_assets/assets/000/000/115/original/caching.png?1615371708)