강의 듣는중 에러가 떠서 질문 드립니다 ㅜ

Question

이러한 에러가 뜨는데 어디서부터 무엇이 잘못된건지 햇갈리네요 ㅜ 왜 이런 에러가 뜨는 걸까요?? [nodemon] restarting due to changes... [nodemon] starting `node app.js` internal/modules/cjs/loader.js:883 throw err; ^ Error: Cannot find module '/../config/config.json' Require stack: - C:\Users\com\vue강좌\라우터복습\ch4\back\models\index.js - C:\Users\com\vue강좌\라우터복습\ch4\back\app.js at Function.Module._resolveFilename (internal/modules/cjs/loader.js:880:15) at Function.Module._load (internal/modules/cjs/loader.js:725:27) at Module.require (internal/modules/cjs/loader.js:952:19) at require (internal/modules/cjs/helpers.js:88:18) at Object.<anonymous> (C:\Users\com\vue강좌\라우터복습\ch4\back\models\index.js:3:16) at Module._compile (internal/modules/cjs/loader.js:1063:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10) at Module.load (internal/modules/cjs/loader.js:928:32) at Module.require (internal/modules/cjs/loader.js:952:19) { code: 'MODULE_NOT_FOUND', requireStack: [ 'C:\Users\com\vue강좌\라우터복습\ch4\back\models\index.js', 'C:\Users\com\vue강좌\라우터복습\ch4\back\app.js' ] } [nodemon] app crashed - waiting for file changes before starting...

문종현 · Answer

index.js 에 '../config/config.json 이부분 앞에 슬래쉬 하나가 더 들어 간거 같아서 제거하고 npm run dev를 해보니 이번엔 좀 다르게 뜨네요 ㅜㅜ [nodemon] restarting due to changes... [nodemon] starting `node app.js` 백앤드 서버 3085번 포트에서 작동중 (node:26792) UnhandledPromiseRejectionWarning: SequelizeConnectionRefusedError: connect ECONNREFUSED 127.0.0.1:3306 at ConnectionManager.connect (C:\Users\com\vue강좌\라우터복습\ch4\back
ode_modules\sequelize\lib\dialects\mysql\connection-manager.js:116:17) at processTicksAndRejections (internal/process/task_queues.js:93:5) at async ConnectionManager._connect (C:\Users\com\vue강좌\라우터복습\ch4\back
ode_modules\sequelize\lib\dialects\abstract\connection-manager.js:318:24) at async C:\Users\com\vue강좌\라우터복습\ch4\back
ode_modules\sequelize\lib\dialects\abstract\connection-manager.js:250:32 at async ConnectionManager.getConnection (C:\Users\com\vue강좌\라우터복습\ch4\back
ode_modules\sequelize\lib\dialects\abstract\connection-manager.js:280:7) at async C:\Users\com\vue강좌\라우터복습\ch4\back
ode_modules\sequelize\lib\sequelize.js:613:26 at async MySQLQueryInterface.createTable (C:\Users\com\vue강좌\라우터복습\ch4\back
ode_modules\sequelize\lib\dialects\abstract\query-interface.js:225:12) at async Function.sync (C:\Users\com\vue강좌\라우터복습\ch4\back
ode_modules\sequelize\lib\model.js:1300:5) at async Sequelize.sync (C:\Users\com\vue강좌\라우터복습\ch4\back
ode_modules\sequelize\lib\sequelize.js:793:35) (Use `node --trace-warnings ...` to show where the warning was created) (node:26792) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1) (node:26792) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code. 빨갛게 뜨지 않는거 보니 에러같은건 아닌거 같은데 ㅜ 백앤드 들어와서 힘드네요 ㅜ

문종현 · Answer

코드를 못올려 올려드립니다!

문종현 · Answer

app.js const express = require ( 'express' ); const db = require ( './models' ) const app = express (); db . sequelize . sync (); app . use ( express . json ()); app . use ( express . urlencoded ({ extended : false })) app . get ( '/' , ( req , res ) => { res . send ( '안녕 시퀄라이즈' ) }) app . post ( '/user' , async ( req , res ) => { try { const newUser = await db . User . create ({ where : { email : req . body . email , nickname : req . body . nickname , password : req . body . password , } }) res . status ( 201 ). json () } catch ( err ) { console . log ( err ) next ( err ) } }) app . listen ( 3085 , () => { console . log ( `백앤드 서버 ${ 3085 } 번 포트에서 작동중` ) })

문종현 · Answer

user.js module . exports = ( sequelize , DataTypes ) => { const User = sequelize . define ( 'User' , { email : { type : DataTypes . STRING ( 40 ), // 40자 이내 allowNull : false , // 필수 unique : true , // 중복금지 }, nickname : { type : DataTypes . STRING ( 20 ), allowNull : false , }, password : { type : DataTypes . STRING ( 100 ), allowNull : false , }, }, { charset : 'utf8' , collate : 'utf8_general_ci' , // 한글 저장돼요 }); User . associate = ( db ) => { db . User . hasMany ( db . Post ); db . User . hasMany ( db . Comment ); }; return User ; };

문종현 · Answer

index.js const Sequelize = require ( 'sequelize' ); const env = process . env . NODE_ENV || 'development' ; const config = require ( '/../config/config.json' )[ env ]; const db = {}; const sequelize = new Sequelize ( config . database , config . username , config . password , config ); db . User = require ( './user' )( sequelize , Sequelize ) Object . keys ( db ). forEach ( modelName => { if ( db [ modelName ]. associate ) { db [ modelName ]. associate ( db ); } }); db . sequelize = sequelize ; db . Sequelize = Sequelize ; module . exports = db ;