Meteor with Angular2 Error

help
1

I’m following the tutorial with angular2, on step 3 I get the error above.

Anybody can help me?

Error
=> Exited with code: 8
=> Your application is crashing. Waiting for file change.
=> Modified – restarting.
W20160527-18:16:12.901(-3)? (STDERR)
W20160527-18:16:12.901(-3)? (STDERR) /Users/rodrigocastilho/.meteor/packages/meteor-tool/.1.3.2_4.lbyo5v++os.osx.x86_64+web.browser+web.cordova/mt-os.osx.x86_64/dev_bundle/server-lib/node_modules/fibers/future.js:267
W20160527-18:16:12.901(-3)? (STDERR) throw(ex);
W20160527-18:16:12.901(-3)? (STDERR) ^
W20160527-18:16:13.210(-3)? (STDERR) Error: A method named ‘/parties/insert’ is already defined
W20160527-18:16:13.210(-3)? (STDERR) at packages/ddp-server/livedata_server.js:1548:15
W20160527-18:16:13.210(-3)? (STDERR) at Function..each..forEach (packages/underscore/underscore.js:113:1)
W20160527-18:16:13.210(-3)? (STDERR) at Server.methods (packages/ddp-server/livedata_server.js:1544:7)
W20160527-18:16:13.211(-3)? (STDERR) at packages/allow-deny/allow-deny.js:191:24
W20160527-18:16:13.211(-3)? (STDERR) at [object Object].CollectionPrototype._defineMutationMethods (packages/allow-deny/allow-deny.js:190:5)
W20160527-18:16:13.211(-3)? (STDERR) at new Mongo.Collection (packages/mongo/collection.js:226:8)
W20160527-18:16:13.211(-3)? (STDERR) at meteorInstall.collections.parties.js (collections/parties.ts:3:22)
W20160527-18:16:13.212(-3)? (STDERR) at fileEvaluate (packages/modules-runtime/.npm/package/node_modules/install/install.js:141:1)
W20160527-18:16:13.212(-3)? (STDERR) at require (packages/modules-runtime/.npm/package/node_modules/install/install.js:75:1)
W20160527-18:16:13.212(-3)? (STDERR) at server/main.ts:4:29

client/app.ts

import { Component, NgZone } from '@angular/core';
import { bootstrap }         from 'angular2-meteor-auto-bootstrap';
import { Parties }           from '../collections/parties';
import { Mongo }             from 'meteor/mongo';

@Component({
  selector: 'app',
  templateUrl: 'client/app.html'
})
class Socially {

  parties: Mongo.Cursor<Object>;

  constructor() {
    this.parties = Parties.find();
  }
}

bootstrap(Socially);

collections/parties.ts

import {Mongo} from 'meteor/mongo';

export let Parties = new Mongo.Collection('parties');
2

I have the same error … I got all the way to step 7 before it appeared.

3

I went through all the steps successfully earlier this week.

I believe your missing these lines on the top of app.ts

import 'reflect-metadata';
import 'zone.js/dist/zone';

I’ve uploaded a working copy of Step04 here: https://github.com/cesargalindo/socially-step04

4

I went through all the steps successfully earlier this week.

Here’s a working copy of Step07 here: https://github.com/cesargalindo/socially-step07

5

@cesargalindo THANK YOU very much. Yours runs great mine still crashes during build with the

A method named '/parties/insert' is already defined

The main source files are the same … I’ll go through the project with a diffing tool to see what I can find.

thanks again!

6

Tank you guys, but my app keep crashing after add lines.
The working copy you uploaded reflect the same problem, i believe that is a problem with my meteor installation or dependencies.
I’m trying to reinstall everything and starts again.

7

I figured it out!

If I manually delete the .js and .map files in the collections and client folders the app builds.

Here is the broken project and how to repro and fix the issue:

https://github.com/stocksp/socially-step-07-broken

@cesargalindo thanks again for your repo … I could not have fixed this without it.

Is there a way to force Meteor to ‘really’ rebuild itself for the .ts files ?

8

Thanks @stocksp, deleting .js and .map files in the collections makes app working fine.

Does it make sense?

Saving collection generate .js and .map, and app crashes again.

9

I’m not sure what exactly is going on other than its obvious on my machine that the Meteor build system is not working correctly and is allowing stale/toxic js to be cached and used, which caused the build to fail.
The error was that the parties collection method was showing up twice.
If you cloned @cesargalindo step seven GitHup repo he posted above AND that crashed the build system then I’m stumped.

10

Sounds like you have a TypeScript auto compiler running, probably in your editor. You should let meteor handle all the typescript compiles.

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