Handlebars precompile version error with Ember rc1

Question

Upgrading Ember to 1.0.0-rc1 results in the following error: ``` Uncaught Template was precompiled with an older version of Handlebars than the current runtime. Please update your precompiler to a newer version (>= 1.0.0-rc.3) or downgrade your runtime to an older version (<= 1.0.rc.2). ``` I am using a version of handlebars that should work according to the error message above: ``` DEBUG: Ember.VERSION : 1.0.0-rc.1 ember.js:339 DEBUG: Handlebars.VERSION : 1.0.0-rc.3 ember.js:339 DEBUG: jQuery.VERSION : 1.9.1 ``` I also upgraded my `ember-rails` gem to `0.9.2` How do I get around this error?

Accepted Answer

This was caused by `barber` gem which is using handlebars rc2 for template precompilation. I've made a pull request which fixes it. If you need this working now, you can just use my fork :)

Update: instructions for using darthdeus fork:

1) Add the following to your Gemfile:

```
gem "barber", :git => "git://github.com/darthdeus/barber.git", :branch => "update-handlebars-to-rc3"
```

2) Clear your tmp dir

```
rm -rf tmp
```

3) Restart your server

edit: for future readers the changes have been merged now, so using a master branch from the official repo should work.

Handlebars precompile version error with Ember rc1

Solution

Problem