下面是下面代码的输出日志,我不知道为什么会抛出错误,我认为行尾的数字是line number
:char number
,我会用代码发布一些关键行号。
由于某种原因不能工作
系列完整events.js:171个
抛出TypeError('listener必须是一个函数');
^ TypeError:listener必须是函数
在TypeError()
在NativeConnection.EventEmitter.once(events.js:171:11)
at /home/melman/Documents/Git/angular-test/server.js:39:24
at /home/melman/Documents/Git/angular-test/node_modules/async/lib/async.js:5 48:21
at /home/melman/Documents/Git/angular-test/node_modules/async/lib/async.js:2 24:13
在iterate(/ home / melman / Documents / Git / angular-test / node_modules / async / lib / a
sync.js:131:13)
at async.eachSeries(/ home / melman / Documents / Git / angular-test / node_modules / as
YNC / LIB / async.js:147:9)
在_asyncMap(/ home / melman / Documents / Git / angular-test / node_modules / async / lib
/async.js:223:9)
at Object.mapSeries(/ home / melman / Documents / Git / angular-test / node_modules / as
YNC / LIB / async.js:213:23)
at Object.async.series(/ home / melman / Documents / Git / angular-test / node_modules
/async/lib/async.js:546:19)
28: var serverConfiguration = {
init: function (){
30: var self = this;
async.series([
function (callback) {
// connect to the db
db.connect('mongodb://localhost/piautomation');
var dbConn = db.connection;
dbConn.on('error', console.error.bind(console, 'connection error:'));
dbConn.once('open', callback(null));
40: },
function (callback) {
console.log('Configure the db');
self.models = require('./server/config/mongoose')(db); // setup the db with the models and schemas
callback(null);
},
function (callback) {
console.log("Start creating models");
self.newsApi = require('./server/api/news')(self.models.News); // pass the news api the News model
callback(null);
50: },
function (callback) {
console.log("configure routes");
require('./server/config/routes')(app, self.newsApi, clientDir, callback); // set up the routes with the model api's functions
},
function (callback) {
console.log("http server created");
var server = http.createServer(app);
console.log("starting reload");
reload(server, app);
60: console.log("start server listen");
// if we have successful db connection, allow the rest of the app to start up
server.listen(app.get('port'), function(){
console.log("Web server listening in %s on port %d", colors.red(process.env.NODE_ENV), app.get('port'));
callback(null);
});
console.log("for some reason not working");
callback(null);
}
], function () {
70: console.log("series complete");
});
}
}.init();
答案 0 :(得分:4)
尝试从
更改第39行dbConn.once('open', callback(null));
到
dbConn.once('open', callback);