mongodb cryptic error process.nextTick(function() < throw err; >) ^ Error at Object.
When attempting to start my MEAN app after adding mongoose and a couple of mongoose Schemas, I’m getting a strange error.
node_modules/mongoose/node_modules/mongodb/lib/server.js:228 process.nextTick(function() < throw err; >) ^ Error at Object. (/Projects/node/flapper-news/node_modules/mongoose/node_modules/mongodb/node_modules/mongodb-core/lib/error.js:42:24) at Module._compile (module.js:460:26) at Object.Module._extensions..js (module.js:478:10) at Module.load (module.js:355:32) at Function.Module._load (module.js:310:12) at Module.require (module.js:365:17) at require (module.js:384:17) at Object. (/Projects/node/flapper-news/node_modules/mongoose/node_modules/mongodb/node_modules/mongodb-core/index.js:2:17) at Module._compile (module.js:460:26) at Object.Module._extensions..js (module.js:478:10) app.js
var express = require('express'); var path = require('path'); var favicon = require('serve-favicon'); var logger = require('morgan'); var cookieParser = require('cookie-parser'); var bodyParser = require('body-parser'); var mongoose = require('mongoose'); require('./models/Posts'); require('./models/Comments'); mongoose.connect('mongodb://localhost/news'); var routes = require('./routes/index'); var users = require('./routes/users'); var app = express(); // view engine setup app.set('views', path.join(__dirname, 'views')); app.set('view engine', 'ejs'); // uncomment after placing your favicon in /public //app.use(favicon(__dirname + '/public/favicon.ico')); app.use(logger('dev')); app.use(bodyParser.json()); app.use(bodyParser.urlencoded(< extended: false >)); app.use(cookieParser()); app.use(express.static(path.join(__dirname, 'public'))); app.use('/', routes); app.use('/users', users); // catch 404 and forward to error handler app.use(function(req, res, next) < var err = new Error('Not Found'); err.status = 404; next(err); >); // error handlers // development error handler // will print stacktrace if (app.get('env') === 'development') < app.use(function(err, req, res, next) < res.status(err.status || 500); res.render('error', < message: err.message, error: err >); >); > // production error handler // no stacktraces leaked to user app.use(function(err, req, res, next) < res.status(err.status || 500); res.render('error', < message: err.message, error: <>>); >); module.exports = app; routes
var express = require('express'), router = express.Router(), mongoose = require('mongoose'), Post = mongoose.model('Post'), Comment= mongoose.model('Comment'); /* GET home page. */ router.get('/', function(req, res, next) < res.render('index', < title: 'Express' >); >); router.get('/posts', function(req, res, next) < Post.find(function(err, posts)< if(err)< return next(err); >res.json(posts); >); >); router.post('/posts', function(req, res, next) < var post = new Post(req.body); post.save(function(err, post) < if (err) < return next(err); >res.json(post); >); >); module.exports = router; schemas
var mongoose = require('mongoose'); var PostSchema = new mongoose.Schema(< title: String, link: String, upvotes: , comments: [< type: mongoose.Schema.Types.ObjectId, ref: 'Comment' >] >); mongoose.model('Post', PostSchema); var CommentSchema = new mongoose.Schema(< body: String, author: String, upvotes: , post: < type: mongoose.Schema.Types.ObjectId, ref: 'Post' >>); mongoose.model('Comment', CommentSchema); I previously had schemas and mongoose connect call after declaring app = express() in app.js, but that threw a different error. Can someone spot where I’ve gone wrong?
How to resolve this «at Object. » error in jest.js
I have lots of global objects and say a function which is to be tested but when I run npm test i get at Object. (index.js:2:1) at Object. (index.test.js:1:1) this error this error points at the object «.» of gblob.aobj=<>; for simplicity sake i have created a index.js and index.test.js file ,im new to jest.js note: im working on SPA: single page application where this variable is created in another js index.js
gblob.aobj=<>; function sum(a, b) < return a + b; >module.exports = sum;
«»» «»» index.test.js
const sum = require('./index'); test('adds 1 + 2 to equal 3', () => < expect(a.hy()).toBe(3); >);
«»» «»» package.json if i need to add something here
< "name": "my-app", "version": "1.0.0", "description": "", "main": "index.js", "scripts": < "test": "jest" >, " author": "", "license": "ISC", "devDependencies": < "jest": "^24.7.1" >>
Ещё ошибка в node, как исправить?
Error: Route.get() requires a callback function but got a [object Undefined]
at Route. [as get] (F:\web_site\online-store\server\node_modules\express\lib\router\route.js:211:15)
at app. [as get] (F:\web_site\online-store\server\node_modules\express\lib\application.js:499:19)
at Object. (F:\web_site\online-store\server\routes\deviceRouter.js:7:8)
at Module._compile (node:internal/modules/cjs/loader:1275:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1329:10)
at Module.load (node:internal/modules/cjs/loader:1133:32)
at Module._load (node:internal/modules/cjs/loader:972:12)
at Module.require (node:internal/modules/cjs/loader:1157:19)
at require (node:internal/modules/helpers:119:18)
at Object. (F:\web_site\online-store\server\routes\index.js:3:22)
Node.js v19.8.1
[nodemon] app crashed — waiting for file changes before starting.
Ответ написан 12 июн. 2023
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Error at Object. #28
dcsan opened this issue Jan 4, 2016 · 3 comments
Error at Object. #28
dcsan opened this issue Jan 4, 2016 · 3 comments
Comments
dcsan commented Jan 4, 2016
I tried a very simple script to use this without common-node, and using Fibers, but hit a problem right away;
var Fiber = require('fibers'); let Server = require('mongo-sync').Server; let server = new Server('127.0.0.1:3001'); const testDb = () => Fiber(function() var result = server.db('Meteor').getCollection('Topics').find().toArray(); console.log('db result'); >).run(); >; testDb();
gives the error below:
< [Error: Cannot find module '../build/Release/bson'] code: 'MODULE_NOT_FOUND' >js-bson: Failed to load c++ bson extension, using pure JS version I assume this doesn’t matter as i’ve often seen this problem.
/Users/dc/dev/rikai/chatrobot/tools/node_modules/mongodb/lib/utils.js:97 process.nextTick(function() < throw err; >); ^ Error: Error at Object. (/Users/dc/dev/rikai/chatrobot/tools/node_modules/mongodb-core/lib/error.js:42:24) at Module._compile (module.js:398:26) at Object.Module._extensions..js (module.js:405:10) at Module.load (module.js:344:32) at Function.Module._load (module.js:301:12) at Module.require (module.js:354:17) at require (internal/module.js:12:17) at Object. (/Users/dc/dev/rikai/chatrobot/tools/node_modules/mongodb-core/index.js:2:17) at Module._compile (module.js:398:26) at Object.Module._extensions..js (module.js:405:10) Followed by: at Cursor. (/Users/dc/dev/rikai/chatrobot/tools/node_modules/mongo-sync/lib/mongo-sync.js:27:13) at Cursor.toArray (/Users/dc/dev/rikai/chatrobot/tools/node_modules/mongo-sync/lib/mongo-sync.js:203:20) at /Users/dc/dev/rikai/chatrobot/tools/watch-rebot.js:34:69 The text was updated successfully, but these errors were encountered: