installation issue with Redmine 3.1.1

[herste]

Hello,

installation went well, no errors came up during the installation procedure. However, when starting
the web server we see the following exception in the error logs:

git://github.com/Undev/rails_sql_views.git (at master) is not yet checked out. Run bundle install first. (Bundler::GitError)

When issuing "bundle install" again, it states that this is already installed:

bundle install | grep rails_sql_views
Using rails_sql_views 0.8.2.undev from git://github.com/Undev/rails_sql_views.git (at master)

Any idea why we see this behaviour?

Thanks,
Heri