为什么Meteor抱怨已经定义了集合的插入方法？

Question

任何人都可以告诉我为什么下面的代码会引发以下错误？:

Error: A method named '/players/insert' is already defined 

我是Meteor和coffeescript的新手,所以我可能会忽略一些简单的事情.

这是我对coffeescript的排行榜示例的端口:

###
Set up a collection to contain player information. On the server,
it is backed by a MongoDB collection named "players."
###
Players = new Meteor.Collection("players")

if Meteor.is_client
  Template.leaderboard.players = ->
    Players.find({}, {sort: {score: -1, name: 1}})

  Template.leaderboard.selected_name = ->
    player = Players.findOne(Session.get "selected_player")
    player and player.name

  Template.player.selected = -> if Session.equals("selected_player", this._id) then "selected" else ''

  Template.leaderboard.events = {
    'click input.inc': ->
      Players.update(Session.get("selected_player"), {$inc: {score: 5}})
  }

  Template.player.events = {
    'click': ->
      Session.set("selected_player", this._id)
  }

# On server startup, create some players if the database is empty.
if Meteor.is_server
  Meteor.startup ->
    if Players.find().count() is 0
      names = [
                "Ada Lovelace"
                "Grace Hopper"
                "Marie Curie"
                "Carl Friedrich Gauss"
                "Nikola Tesla"
                "Claude Shannon"
              ]
      Players.insert({name: name, score: Math.floor(Math.random()*10)*5}) for name in names

完整堆栈跟踪如下:

[[[[[ ~/dev/meteor/leaderboard ]]]]]

Running on: http://localhost:3000/

node.js:201
        throw e; // process.nextTick error, or 'error' event on first tick
              ^
Error: A method named '/players/insert' is already defined
    at app/packages/livedata/livedata_server.js:744:15
    at Function.<anonymous> (app/packages/underscore/underscore.js:84:24)
    at [object Object].methods (app/packages/livedata/livedata_server.js:742:7)
    at new <anonymous> (app/packages/mongo-livedata/collection.js:111:13)
    at app/leaderboard.js:4:11
    at /Users/alex/dev/meteor/leaderboard/.meteor/local/build/server/server.js:109:21
    at Array.forEach (native)
    at Function.<anonymous> (/Users/alex/dev/meteor/leaderboard/.meteor/local/build/server/underscore.js:76:11)
    at /Users/alex/dev/meteor/leaderboard/.meteor/local/build/server/server.js:95:7
Exited with code: 1

我正在运行Meteor版本0.4.0(8f4045c1b9)

在此先感谢您的帮助!

Answer 1

如果您复制了文件,无论使用coffeescript还是普通javascript,您都会收到此错误.例如,将源文件复制到名为Backup的子目录会产生此错误,因为Meteor会合并子目录中的文件.

Answer 2

这似乎是 Coffeelint 的配置问题（通过 npm 全局安装）。

我最初安装 Coffeelint 是为了检查我的 CoffeeScript 代码是否正确并且没有错误。

我按照说明安装了 Coffeelint：

sudo npm install -g coffeelint

当单独针对 .coffee 文件运行时，coffeelint 工作得很好。

然而，当运行添加了 Coffeescript 包的任何 Meteor 项目时，我收到了上述错误。

一时兴起，我认为该错误可能是由于与我现有的节点安装冲突造成的。

我决定首先卸载 Coffeelint：

sudo npm uninstall -g coffeelint

然后删除之前meteor生成的leaderboard.js文件。

重新启动流星后，上面的咖啡脚本示例按预期工作，没有错误。