Nodejs server crashes on every save?

Question

Node.js

Every time the file is saved, the server reboots with the help of backpack
and displays a message that the port is busy and does not have time to start, I
kill this port with the kill [PID] command, but the problem repeats

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (net.js:1314:16)
    at listenInCluster (net.js:1362:12)
    at Server.listen (net.js:1448:7)
    at Application.listen (/Users/emilov/projects/nodejs-koa-ts-boilerplate/node_modules/koa/lib/application.js:80:19)
    at Object.call (/Users/emilov/projects/nodejs-koa-ts-boilerplate/build/webpack:/src/server.ts:3:5)
    at n (/Users/emilov/projects/nodejs-koa-ts-boilerplate/build/webpack:/webpack/bootstrap:19:22)
    at Object.call (/Users/emilov/projects/nodejs-koa-ts-boilerplate/build/main.js:2:5289)
    at __webpack_require__ (/Users/emilov/projects/nodejs-koa-ts-boilerplate/build/webpack:/webpack/bootstrap:19:22)
    at module.exports../src/app.ts (/Users/emilov/projects/nodejs-koa-ts-boilerplate/build/webpack:/webpack/bootstrap:83:10)
    at Object.<anonymous> (/Users/emilov/projects/nodejs-koa-ts-boilerplate/build/main.js:2:972)
    at Module._compile (internal/modules/cjs/loader.js:1185:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1205:10)
    at Module.load (internal/modules/cjs/loader.js:1034:32)
    at Function.Module._load (internal/modules/cjs/loader.js:923:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47

how to fix?

Answer 1

By saving a file, do you mean changes in the application code, or uploading a file to the server from the client?
That's it, I read what your bagpack is, but why didn't nodemon actually work? file code where the server starts can be?