r10k result

INFO	 -> Deploying environment /etc/puppetlabs/code/hostdata/hotfix_matrix037
INFO	 -> Deploying environment /etc/puppetlabs/code/hostdata/live
ERROR	 -> wrong argument type nil (expected String)
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/rugged-0.21.4/lib/rugged/repository.rb:33:in `[]'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/rugged-0.21.4/lib/rugged/repository.rb:33:in `checkout'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/git/rugged/working_repository.rb:69:in `block in checkout'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/git/rugged/base_repository.rb:46:in `with_repo'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/git/rugged/working_repository.rb:68:in `checkout'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/git/rugged/thin_repository.rb:51:in `checkout'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/git/stateful_repository.rb:51:in `sync'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/environment/git.rb:51:in `sync'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/deploy/environment.rb:69:in `visit_environment'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/visitor.rb:24:in `visit'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/environment/base.rb:78:in `accept'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/source/base.rb:64:in `block (2 levels) in accept'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/source/base.rb:63:in `each'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/source/base.rb:63:in `block in accept'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/deploy/environment.rb:59:in `visit_source'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/visitor.rb:24:in `visit'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/source/base.rb:62:in `accept'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/deployment.rb:102:in `block (2 levels) in accept'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/deployment.rb:101:in `each'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/deployment.rb:101:in `block in accept'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/deploy/environment.rb:46:in `visit_deployment'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/visitor.rb:24:in `visit'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/deployment.rb:100:in `accept'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/deploy/environment.rb:30:in `call'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/runner.rb:30:in `call'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/lib/r10k/action/cri_runner.rb:67:in `call'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/cri-2.6.1/lib/cri/command_dsl.rb:223:in `block in runner'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/cri-2.6.1/lib/cri/command.rb:298:in `call'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/cri-2.6.1/lib/cri/command.rb:298:in `run_this'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/cri-2.6.1/lib/cri/command.rb:251:in `run'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/cri-2.6.1/lib/cri/command.rb:264:in `run'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/cri-2.6.1/lib/cri/command.rb:264:in `run'
/opt/puppetlabs/puppet/lib/ruby/gems/2.1.0/gems/r10k-2.0.3/bin/r10k:7:in `<top (required)>'
/usr/local/bin/r10k:23:in `load'
/usr/local/bin/r10k:23:in `<main>'
INFO	 -> Deploying environment /etc/puppetlabs/code/environments/develop
INFO	 -> Deploying module /etc/puppetlabs/code/environments/develop/modules/sysctl
INFO	 -> Deploying module /etc/puppetlabs/code/environments/develop/modules/limits
INFO	 -> Deploying module /etc/puppetlabs/code/environments/develop/modules/ntp