CollectionFS with mongo update command in Meteor.js - mongodb

Question

In my meteor.js application, I am trying to update a group's picture by using CollectionFS.
var groupimage = Images.insert(file);
Groups.update(groupId, {$set: { photo: groupimage }}, function(error) {
if (error) {
// display the error to the user
throwError(error.reason);
} else {
console.log('mongo document new');
console.log(Groups.findOne({_id:groupId}));
}
});
This does not work, it gives this error:
Exception in delivering result of invoking '/groups/update': ReferenceError: throwError is not defined
at http://localhost:3000/client/views/groups/editgroup/editgroupgeneral/editgr…dropzoneeditgroupgeneral.js?a1c6bb6d6c464c579ca4a82ca9f92775df17f5c5:39:21
at wrappedCallback (http://localhost:3000/packages/mongo-livedata.js?9213dc77ff40001575341a02827a8f1ed3200d98:531:9)
at null._callback (http://localhost:3000/packages/meteor.js?47d1d2b71177463dc159606cf930e44b9e3337f6:831:22)
at _.extend._maybeInvokeCallback (http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:3802:12)
at _.extend.receiveResult (http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:3822:10)
at _.extend._livedata_result (http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:4831:9)
at onMessage (http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:3667:12)
at http://localhost:3000/packages/livedata.js? 32d6f3870045baedecfa7c0d90861ead2810da37:2710:11
at Array.forEach (native)
at Function._.each._.forEach (http://localhost:3000/packages/underscore.js?0a80a8623e1b40b5df5a05582f288ddd586eaa18:156:11)
But when I insert instead of update, everything is working perfectly. This works.
var groupimage = Images.insert(file);
Groups.insert({
name: 'My Group',
photo: groupimage
});
What is the problem with my update? Thank you.
Edit
Exception in delivering result of invoking '/groups/update': Error
at http://localhost:3000/client/views/groups/editgroup/editgroupgeneral/editgr…dropzoneeditgroupgeneral.js?c24e8998d12b9aaa84912c2e87ec327e47277070:39:27
at wrappedCallback (http://localhost:3000/packages/mongo-livedata.js?9213dc77ff40001575341a02827a8f1ed3200d98:531:9)
at null._callback (http://localhost:3000/packages/meteor.js?47d1d2b71177463dc159606cf930e44b9e3337f6:831:22)
at _.extend._maybeInvokeCallback (http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:3802:12)
at _.extend.receiveResult (http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:3822:10)
at _.extend._livedata_result (http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:4831:9)
at onMessage (http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:3667:12)
at http://localhost:3000/packages/livedata.js?32d6f3870045baedecfa7c0d90861ead2810da37:2710:11
at Array.forEach (native)
at Function._.each._.forEach (http://localhost:3000/packages/underscore.js?0a80a8623e1b40b5df5a05582f288ddd586eaa18:156:11)
Edit 2
errorClassdetails: undefinederror: 409errorType: "Meteor.Error"message: "MongoError: not okForStorage [409]"reason: "MongoError: not okForStorage"stack: (...)get stack: function () { [native code] }arguments: nullcaller: nulllength: 0name: ""prototype: Object__proto__: function Empty() {}<function scope>set stack: function () { [native code] }__proto__: Middle

Answer 1

You should maybe use Meteor's error method instead:
throw new Meteor.Error(500, error.reason);