Sequence contains no matching elements

[maciejjankowski]

vagrant@v:/vagrant$ git --version
git version 1.9.1
vagrant@v:/vagrant$ ruby -v
ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-linux]
vagrant@v:/vagrant$ uname -a
Linux v 3.13.0-52-generic #86-Ubuntu SMP Mon May 4 04:32:59 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

vagrant@v:/vagrant$ git_stats generate  --path=cms-java-experiments/
git rev-parse --short HEAD
git rev-list --pretty=format:'%h|%at|%ai|%aE' HEAD . | grep -v commit
git shortlog -se HEAD .
/usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/core_extensions/enumerable.rb:5:i
n `first!': Sequence contains no matching elements (RuntimeError)
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/git_data/repo.rb:55: in `block in commits'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/git_data/repo.rb:49: in `map'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/git_data/repo.rb:49: in `commits'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/git_data/repo.rb:61: in `commits_period'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/templates/general.haml:19:in `block in singleton class'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/templates/general.haml:-9:in `instance_eval'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/templates/general.haml:-9:in `singleton class'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/templates/general.haml:-11:in `__tilt_7297420'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `call'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `evaluate'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/tilt-1.4.1/lib/tilt/haml.rb:24:in `evaluate'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/tilt-1.4.1/lib/tilt/template.rb:103:in `render'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/stats_view/template.
rb:13:in `block in render'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/templates/layout.haml:30:in `block
 in singleton class'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/templates/layout.haml:-9:in `insta
nce_eval'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/templates/layout.haml:-9:in `singl
eton class'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/templates/layout.haml:-11:in `__ti
lt_7297420'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `call'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `evaluate'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/tilt-1.4.1/lib/tilt/haml.rb:24:in `evaluate'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/tilt-1.4.1/lib/tilt/template.rb:103:in `render'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/stats_view/template.
rb:13:in `render'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/stats_view/view.rb:1
5:in `block in render_all'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/stats_view/view.rb:1
4:in `each'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/stats_view/view.rb:1
4:in `render_all'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/generator.rb:5:in `r
ender_all'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/lib/git_stats/cli.rb:20:in `genera
te'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_c
ommand'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/thor-0.19.1/lib/thor.rb:359:in `dispatch'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
        from /usr/local/rvm/gems/ruby-2.2.2/gems/git_stats-1.0.14/bin/git_stats:10:in `<top (require
d)>'
        from /usr/local/rvm/gems/ruby-2.2.2/bin/git_stats:23:in `load'
        from /usr/local/rvm/gems/ruby-2.2.2/bin/git_stats:23:in `<main>'
        from /usr/local/rvm/gems/ruby-2.2.2/bin/ruby_executable_hooks:15:in `eval'
        from /usr/local/rvm/gems/ruby-2.2.2/bin/ruby_executable_hooks:15:in `<main>'