Meteor update to 0.8.3 breaks app - meteor

Question

Today I updated my Meteor project to version 0.8.3
$> [master●] % mrt update
✓ normalize.css
branch: https://github.com/rithis-archive/meteor-normalize.css.git#master
✓ Meteor.cron
branch: https://github.com/alexsuslov/Meteor.cron.git#master
✓ iron-router
tag: https://github.com/EventedMind/iron-router.git#v0.9.1
✓ mongodb-server-aggregation
tag: https://github.com/zvictor/meteor-mongo-server.git#v1.0.3
✓ reactive-publish
tag: https://github.com/Diggsey/meteor-reactive-publish.git#v0.1.6
✓ reststop2
tag: https://github.com/Differential/reststop2.git#v0.6.0
✓ kadira
tag: https://github.com/meteorhacks/kadira.git#v2.4.13
✓ subs-manager
tag: https://github.com/meteorhacks/subs-manager.git#v1.0.2
✓ async
tag: https://github.com/peerlibrary/meteor-async.git#v0.9.0-1
✓ npm
tag: https://github.com/arunoda/meteor-npm.git#v0.2.6
✓ iron-layout
tag: https://github.com/EventedMind/iron-layout.git#v0.2.0
✓ server-deps
tag: https://github.com/Diggsey/meteor-server-deps.git#v0.1.2
✓ blaze-layout
tag: https://github.com/EventedMind/blaze-layout.git#v0.2.5
✓ iron-core
tag: https://github.com/EventedMind/iron-core.git#v0.2.0
✓ iron-dynamic-template
tag: https://github.com/EventedMind/iron-dynamic-template.git#v0.2.1
Done installing smart packages
Now when I run it $> mrt I get the following output:
Stand back while Meteorite does its thing
Done installing smart packages
Ok, everything's ready. Here comes Meteor!
[[[[[ ~/tmp/test ]]]]]
=> Started proxy.
=> Meteor 0.8.3 is available. Update this project with 'meteor update'.
=> Started MongoDB.
iron-router: updating npm dependencies -- connect...
kadira: updating npm dependencies -- debug, usage...
=> Errors prevented startup:
While building package `iron-router`:
error: no such package: 'reactive-dict#1.0.0'
error: no such package: 'deps#1.0.0'
error: no such package: 'underscore#1.0.0'
error: no such package: 'ejson#1.0.0'
error: no such package: 'jquery#1.0.0'
error: no such package: 'ui#1.0.0'
error: no such package: 'iron'
error: no such package: 'cmather'
error: no such package: 'webapp#1.0.0'
=> Your application has errors. Waiting for file change.
Now when I do meteor update the problem remains. Even if I first do meteor update and then mrt update I end up with the same result. Any suggestions ?

Answer 1

The problem is that running mrt update has updated iron:router to the latest version (0.9.1), which is only compatible with meteor 0.9 release candidates (see the explanation here : Installation issues with iron-router (newest) on Windows 7 x64 (Meteor 0.8.3)).
What you need to do is downgrading iron-router to 0.8.2 which is compatible with meteor 0.8.3.
To do so, you'll have to modify your smart.json like this :
{
"packages": {
"iron-router":{
"version": "0.8.2"
}
}
Then clean your project by removing smart.lock and run mrt install to make sure meteorite has accounted for the change.
If everything is OK the iron-router version symlinked in your project packages folder should point to iron-router#0.8.2