cannot load such file -- commander (LoadError)

[juncoding]

Hi, appreciate you guys to provide this cool exporter.
I just downloaded zip file from master branch to my macbook.

But stuck here:
zhoujun:bin zhoujun$ sudo ./tfexporter --max 10
Password:
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin14/rbconfig.rb:213: warning: Insecure world writable dir /usr/local/heroku/bin in PATH, mode 040777
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in require': cannot load such file -- commander (LoadError) from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:inrequire'
from ./tfexporter:5:in `

'

Could you help? thanks.

[fabiomassimo]

Thanks for using tfexporter.
From what I see you are missing some dependencies required to run our tool (in this case 'commander'). Please run on your terminal:

$ gem install TestFlightExporter 

this will install the gem by satisfying all the dependencies.

Once the gem is installed run

$ tfexporter --help 

To have a nice print of all the available commands and how to use them.