nodemon 应用程序崩溃 - 在启动之前等待文件更改 [英] nodemon app crashed - waiting for file changes before starting
问题描述
编辑经过进一步测试，我发现这个应用程序和 mean.js 的默认安装上的 gulp 和 grunt 都会发生这种情况.我在 Mac 上本地运行它.当我使用node server.js"运行任一应用程序时，它们都不会崩溃.
EDIT After further testing, I have found that this is happening with both gulp and grunt on this app and on the default install of mean.js. I'm running this locally on a Mac. When I running either app using "node server.js" they don't crash.
我正在使用带有 grunt-nodemon 的 MEAN 堆栈，并且在访问快速 URL 时节点崩溃.但它并不总是一致的.有时它可以工作，有时当 URL 被点击时节点崩溃了，没有数据，有时我收到响应并且节点立即崩溃.
I'm using a MEAN stack with grunt-nodemon and node is crashing when an express URL is accessed. It isn't always consistent though. Sometimes it works, sometimes node crashes right when the URL is hit retiring no data, and other times I get a response and node crashed immediately after.
浏览器控制台响应:
http://localhost:8000/api/users net::ERR_CONNECTION_REFUSED
终端输出:
Mongoose: users.insert({ firstname: 'mike', lastname: 'jones', email:'mike@gmail.com', role: 'admin', password: 'mike', _id: ObjectId("57485c16fc11894b96c28057"), created: new Date("Fri, 27 May 2016 14:39:18 GMT"), __v: 0 })
user.save success
node crash
[nodemon] app crashed - waiting for file changes before starting...
在这种情况下，POST 请求通过，用户被添加，然后节点崩溃，但有时它在成功 POST 之前崩溃.Node 偶尔也会在 GET 请求上崩溃.
In this case, the POST request went through, the user was added, then node crashed, but sometimes it crashes before a successful POST. Node also occasionally crashes on the GET request.
gruntfile.js:
module.exports = function(grunt) {
// Load grunt tasks automatically
require('load-grunt-tasks')(grunt);
var pkg = grunt.file.readJSON('package.json');
var options = {
paths: {
app: 'app',
assets: 'app/assets',
dist: 'app/dist',
distAssets: 'app/dist/assets',
html: 'app/html',
htmlTmp: '.tmp/htmlsnapshot',
htmlAssets: 'app/html/assets',
index: 'app/dist/index.html',
indexDev: 'app/index.html',
indexTmp: '.tmp/html/index.html'
},
pkg: pkg,
env: {
test: {
NODE_ENV: 'test'
},
dev: {
NODE_ENV: 'development'
},
prod: {
NODE_ENV: 'production'
}
}
};
// Load grunt configurations automatically
var configs = require('load-grunt-configs')(grunt, options);
// Define the configuration for all the tasks
grunt.initConfig(configs);
// Connect to the MongoDB instance and load the models
grunt.task.registerTask('mongoose', 'Task that connects to the MongoDB instance and loads the application models.', function () {
// Get the callback
var done = this.async();
// Use mongoose configuration
var mongoose = require('./config/lib/mongoose.js');
// Connect to database
mongoose.connect(function (db) {
done();
});
});
grunt.registerTask('bumper', ['bump-only']);
grunt.registerTask('css', ['sass']);
grunt.registerTask('default', [
'sass',
'copy:dev',
'nodemon',
'concurrent:dev',
'watch',
'mongoose'
]);
grunt.registerTask('shared', [
'clean:demo',
'copy:demo',
'sass',
'ngconstant',
'useminPrepare',
'concat:generated',
'cssmin:generated',
'uglify:generated',
'filerev',
'usemin',
'imagemin',
'usebanner'
]);
grunt.registerTask('demo', [
'shared',
'copy:postusemin',
'grep:demo'
]);
grunt.registerTask('dist', [
'shared',
'copy:postusemin',
'copy:dist',
'grep:dist',
'compress',
'copy:postusemin',
'grep:demo',
]);
grunt.loadNpmTasks('grunt-forever');
};
default.js
module.exports.tasks = {
// version update
bump: {
options: {
files: ['package.json', 'bower.json'],
pushTo: 'origin'
}
},
// application constants
ngconstant: {
options: {
dest: '<%= paths.assets %>/js/app.constants.js',
name: 'app.constants',
}
},
// remove all bs from css
cssmin: {
options: {
keepSpecialComments: 0
}
},
markdown: {
all: {
files: [
{
src: 'README.md',
dest: '<%= paths.assets %>/tpl/documentation.html'
}
],
options: {
template: '<%= paths.assets %>/tpl/_documentation_template.html',
}
}
}
};
dev.js:
var _ = require('lodash'),
defaultAssets = require('./assets/default'),
testAssets = require('./assets/test'),
testConfig = require('./env/test'),
fs = require('fs'),
path = require('path');
module.exports.tasks = {
// copy files to correct folders
copy: {
dev: {
files: [
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/font-awesome/fonts', dest: '<%= paths.assets %>/fonts' },
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/material-design-iconic-font/fonts', dest: '<%= paths.assets %>/fonts' },
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/roboto-fontface/fonts', dest: '<%= paths.assets %>/fonts' },
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/weather-icons/font', dest: '<%= paths.assets %>/fonts' },
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/bootstrap-sass/assets/fonts/bootstrap', dest: '<%= paths.assets %>/fonts' }
]
}
},
// watch for changes during development
watch: {
js: {
files: ['Gruntfile.js', '<%= paths.assets %>/js/**/*.js'],
tasks: ['jshint'],
options: {
livereload: true
}
},
css: {
files: [
'<%= paths.assets %>/css/**/*.scss'
],
tasks: ['sass'],
options: {
livereload: true
}
},
markdown: {
files: [
'README.md'
],
tasks: ['markdown']
},
tasks: [ 'express:dev' ],
},
// debug while developing
jshint: {
all: ['Gruntfile.js', '<%= paths.assets %>/js/**/*.js']
},
concurrent: {
dev: {
tasks: ['nodemon', 'node-inspector', 'watch'],
options: {
logConcurrentOutput: true
}
}
},
nodemon: {
dev: {
script: 'server.js',
options: {
nodeArgs: ['--debug'],
ext: 'js,html',
callback: function (nodemon) {
nodemon.on('crash', function (event) {
console.log(event);
});
},
watch: _.union(defaultAssets.server.gruntConfig, defaultAssets.server.views, defaultAssets.server.allJS, defaultAssets.server.config)
}
}
},
forever: {
server1: {
options: {
index: 'server.js',
//logDir: 'logs'
}
}
}
};
角度控制器功能:
$scope.addUser = function(){
var user = {
firstname: $scope.firstname,
lastname: $scope.lastname,
email: $scope.email,
role: $scope.role.selected,
password: $scope.password
};
$http.post('/api/userAdd', user ).then(function successCallback(response) {
$location.path('/users');
}, function errorCallback(response) {
console.log('error addding user');
console.log(response);
});
};
快速路线:
User = require('../models/user.js');
module.exports = function (app) {
app.get('/api/users', function (req, res) {
User.find({}, function (err, users) {
if ( err ) {
res.send({
message : 'error finding users',
success: false
});
} else {
res.json(users);
}
});
});
app.get('/api/users', function (req, res) {
User.find({fields: {}}, function (err, docs) {
res.json(docs);
});
});
app.post('/api/userAdd', function (req, res) {
var user = new User(req.body);
user.save( function( err, user ){
if (err){
console.log('user.save error');
console.log(err);
res.send({
success: false
});
} else {
console.log('user.save success');
res.send({
success: true
});
}
});
});
};
我也在使用 Chromes Advanced REST 扩展进行测试，任何使用此工具节点的请求都会立即崩溃.
I'm also testing with Chromes Advanced REST extension and with any request using this tool node crashes immediately.
我是 MEAN 的新手，所以我在这里遗漏了导致崩溃的东西吗?有任何想法吗?
I'm new to MEAN so am I missing something here that is causing the crash? Any ideas?
推荐答案
发生这种情况是因为所有正在后台运行的服务器进程.所以你需要做的就是从终端阻止他们.
This is happening because of all the running server process in the background. So all you need to do is stop them from the terminal.
快速技巧
对于 LINUX
通过在终端上运行这个来杀死他们:
pkill -f node
然后重启 nodemon.
and then restart nodemon.
FOR 窗口
1. Go to the task manager
2. Then search-for node.js server-side javascript
3. Then right click on it and end-task from the processes.
然后重启服务器.它会正常工作.
Then restart the server. It will work fine.
这篇关于nodemon 应用程序崩溃 - 在启动之前等待文件更改的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
