This is my app.ts file:
import express, { Request, Response } from "express";import dotenv from "dotenv";dotenv.config();import config from "config";import responseTime from "response-time";import connect from "./utils/connect";import logger from "./utils/logger";import routes from "./routes";import deserializeUser from "./middleware/deserializeUser";import { restResponseTimeHistogram, startMetricsServer } from "./utils/metrics";import swaggerDocs from "./utils/swagger";const port = config.get<number>("port");const app = express();app.use(express.json());app.use(deserializeUser);app.use( responseTime((req: Request, res: Response, time: number) => { if (req?.route?.path) { restResponseTimeHistogram.observe( { method: req.method, route: req.route.path, status_code: res.statusCode, }, time * 1000 ); } }));app.listen(port, async () => { logger.info(`App is running at http://localhost:${port}`); await connect(); routes(app); startMetricsServer(); swaggerDocs(app, port);});And I do get this error message:
yarn devyarn run v1.22.17warning package.json: License should be a valid SPDX license expressionwarning ..\..\..\..\package.json: No license field$ ts-node-dev --respawn --transpile-only src/app.ts[INFO] 14:02:52 ts-node-dev ver. 1.1.8 (using ts-node ver. 9.1.1, typescript ver. 4.6.3)TypeError: Cannot read properties of undefined (reading 'config') at Object.<anonymous> (C:\Users\A\Desktop\desktop\base_code\back_bc_node\src\app.ts:3:8) at Module._compile (node:internal/modules/cjs/loader:1103:14) at Module._compile (C:\Users\A\Desktop\desktop\base_code\back_bc_node\node_modules\source-map-support\source-map-support.js:568:25) at Module.m._compile (C:\Users\A\AppData\Local\Temp\ts-node-dev-hook-16796532812275466.js:69:33) at Module._extensions..js (node:internal/modules/cjs/loader:1155:10) at require.extensions.<computed> (C:\Users\A\AppData\Local\Temp\ts-node-dev-hook-16796532812275466.js:71:20) at Object.nodeDevHook [as .ts] (C:\Users\A\Desktop\desktop\base_code\back_bc_node\node_modules\ts-node-dev\lib\hook.js:63:13) at Module.load (node:internal/modules/cjs/loader:981:32) at Function.Module._load (node:internal/modules/cjs/loader:822:12) at Module.require (node:internal/modules/cjs/loader:1005:19)[ERROR] 14:02:52 TypeError: Cannot read properties of undefined (reading 'config')Why do I get this error message? I had this code already working with my previous app with dotenv version 10 but when I copied it in my new app with dotenv version 16 I get this error message.
This is my package.json file:
{"name": "back_bc_node","version": "1.0.0","main": "index.js","license": "Commercial","scripts": {"dev": "ts-node-dev --respawn --transpile-only src/app.ts","build": "tsc" },"dependencies": {"bcrypt": "^5.0.1","config": "^3.3.7","cors": "^2.8.5","dayjs": "^1.11.0","dotenv": "^16.0.0","express": "^4.17.3","jsonwebtoken": "^8.5.1","lodash": "^4.17.21","mongoose": "^6.2.10","nanoid": "^3.3.2","pino": "^7.10.0","pino-pretty": "^7.6.1","prom-client": "^14.0.1","response-time": "^2.3.2","swagger-jsdoc": "^6.2.0","swagger-ui-express": "^4.3.0","zod": "^3.14.4" },"devDependencies": {"@types/bcrypt": "^5.0.0","@types/body-parser": "^1.19.2","@types/config": "^0.0.41","@types/cors": "^2.8.12","@types/express": "^4.17.13","@types/jsonwebtoken": "^8.5.8","@types/lodash": "^4.14.181","@types/nanoid": "^3.0.0","@types/node": "^17.0.23","@types/pino": "^7.0.5","@types/response-time": "^2.3.5","ts-node-dev": "^1.1.8","typescript": "^4.6.3" }}