class Berkshelf::OutdatedDependency

def initialize(locked, dependency)
  @locked     = locked
  @dependency = dependency
end

def to_s
  "Berkshelf could not find compatible versions for cookbook '#{@dependency.name}':\n" +
    "  In Berksfile:\n" +
    "    #{@dependency.name} (#{@dependency.version_constraint})\n\n" +
    "  In Berksfile.lock:\n" +
    "    #{@locked.name} (#{@locked.version})\n\n" +
    "Try running `berks update #{@dependency.name}`, which will try to find '#{@dependency.name}' matching " +
    "'#{@dependency.version_constraint}'."
end