에러가 나오고 포트번호 변경해도 똑같습니다...

(node:12096) Warning: Accessing non-existent property 'MongoError' of module exports inside circular dependency

(Use `node --trace-warnings ...` to show where the warning was created)

Example app listening at http://localhost:7000

MongoParseError: URI does not have hostname, domain name and tld

    at parseSrvConnectionString (C:\Users\mario\Documents\boiler-plate\node_modules\mongodb\lib\core\uri_parser.js:50:21)

    at parseConnectionString (C:\Users\mario\Documents\boiler-plate\node_modules\mongodb\lib\core\uri_parser.js:594:12)  

    at connect (C:\Users\mario\Documents\boiler-plate\node_modules\mongodb\lib\operations\connect.js:284:3)

    at C:\Users\mario\Documents\boiler-plate\node_modules\mongodb\lib\mongo_client.js:225:5

    at maybePromise (C:\Users\mario\Documents\boiler-plate\node_modules\mongodb\lib\utils.js:681:3)

    at MongoClient.connect (C:\Users\mario\Documents\boiler-plate\node_modules\mongodb\lib\mongo_client.js:221:10)

    at C:\Users\mario\Documents\boiler-plate\node_modules\mongoose\lib\connection.js:833:12

    at new Promise (<anonymous>)

    at NativeConnection.Connection.openUri (C:\Users\mario\Documents\boiler-plate\node_modules\mongoose\lib\connection.js:830:19)

    at C:\Users\mario\Documents\boiler-plate\node_modules\mongoose\lib\index.js:345:10

    at C:\Users\mario\Documents\boiler-plate\node_modules\mongoose\lib\helpers\promiseOrCallback.js:31:5

    at new Promise (<anonymous>)

    at promiseOrCallback (C:\Users\mario\Documents\boiler-plate\node_modules\mongoose\lib\helpers\promiseOrCallback.js:30:10)

    at Mongoose._promiseOrCallback (C:\Users\mario\Documents\boiler-plate\node_modules\mongoose\lib\index.js:1135:10)

    at Mongoose.connect (C:\Users\mario\Documents\boiler-plate\node_modules\mongoose\lib\index.js:344:20)

    at Object.<anonymous> (C:\Users\mario\Documents\boiler-plate\index.js:7:10)

이런 에러가 발생하는데 어떤분이 ip주소 경로를 설정하시는거 올린거보고 따라했는데도 이런 에러가 계속 반복됩니다.... 해결해서 다음강의로 진행하고싶습니다 ㅠㅠㅠ