If you don’t know what librarian is – get to know it :) (it makes life much easier)[http://rubydoc.info/gems/librarian-chef] than way back when …

The most annoying thing happend to me earlier this evening, I was working on a cookbook [A chef cookbook …, I don’t actually do the cooking at home :)], and running librarian install yielded the following error:

"Cheffile and Cheffile.lock are out of sync!"

So like a good boy I remoced the Cheffile.lock and ran it again resulting with the same damn error message … arrrrrr !

So after examening my Cheffile over and over I noticed I have listed a dependency from two different location somthing like the followin [ clieng url’s omitted from snippet ]:

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 #!/usr/bin/env ruby
  #^syntax detection
  site "http://shelf.clients_domain.corp:8080"
  cookbook 'simple_proxy', :git => 'git://clients_domain.corp/hagzag/simple_proxy.git', :ref => 'master'
  cookbook 'nw-abap',     :git => 'git://clients_domain.corp/hagzag/nw-abap.git', :ref => 'master'
  cookbook 'sapinst'

  # for lvm volume creation do this once ...
  cookbook 'lvm', :site => 'http://clients_domain.corp:8080'
  cookbook 'sap-lvm'
  cookbook 'line',      :site => 'http://community.opscode.com/api/v1'

  cookbook 'nfs', :site => 'http://clients_domain.corp:8080'
  cookbook 'line', :site => 'http://clients_domain.corp:8080'

If you look a line numbers 11 & 14 you will see I am specifying the smae cookbook from tow different sources …, this is a good thing, your dependecny mechanisem / tool isn’t making decitions for you [ unlike Maven for exmaple … ].

So in order to avoid this error and to comtinue working I had to remove one if the lines and I was good to go.

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 ...
  #cookbook 'line',      :site => 'http://community.opscode.com/api/v1'

  cookbook 'nfs', :site => 'http://clients_domain.corp:8080'
  cookbook 'line', :site => 'http://clients_domain.corp:8080'

Another fraction on my time line …

Enjoy.