Problem building dosc

I am working on Apache Ambari(Hadoop cluster management) project which is using the following Ember build: // Version: v1.0.pre // Last commit: 7955b85 (2012-08-03 14:50:17 -0700)

Since the usage of this version is quite different from the latest Ember especially on routing. I’m trying to build and read the old docs to help me understand the code base. When I run “bundle install”, I got

fatal: repository ‘’ not found.

And I notice some one else is having similar problem with this URL as well:

Now the only way I can read docs is through the comment on ember source code, which is quite a hard time for me. Anyone could help?

Thanks a lot!