找不到模块（错误：找不到模块'./models/campground'）

Question

this is my code

var express     = require("express"),
app         = express(),
bodyParser  = require("body-parser"),
mongoose    = require("mongoose"),
Campground  = require("./models/campground"),
Comment     = require("./models/comment"),
seedDB      = require("./seeds")

this are my file's tree and when i run the above code, i get this error, Error: Cannot find module './models/campground' Require stack:

 - /workspace/webDevBootcamp/yelpcamp/v4/app.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:982:15)
    at Function.Module._load (internal/modules/cjs/loader.js:864:27)
    at Module.require (internal/modules/cjs/loader.js:1044:19)
    at require (internal/modules/cjs/helpers.js:77:18)
    at Object.<anonymous> (/workspace/webDevBootcamp/yelpcamp/v4/app.js:5:19)
    at Module._compile (internal/modules/cjs/loader.js:1158:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)
    at Module.load (internal/modules/cjs/loader.js:1002:32)
    at Function.Module._load (internal/modules/cjs/loader.js:901:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
    at internal/main/run_main_module.js:18:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ '/workspace/webDevBootcamp/yelpcamp/v4/app.js' ]
}

Answer 1

Replace

Campground  = require("./models/campground"),

By

Campground  = require("./models/campgorund"),

Or change the filename "campgorund.js" to "campground.js". :)