# File lib/rubygems/specification.rb, line 1613 def raise_if_conflicts other = Gem.loaded_specs[self.name] if other and self.version != other.version then # This gem is already loaded. If the currently loaded gem is not in the # list of candidate gems, then we have a version conflict. msg = "can't activate #{full_name}, already activated #{other.full_name}" e = Gem::LoadError.new msg e.name = self.name # TODO: e.requirement = dep.requirement raise e end conf = self.conflicts unless conf.empty? then y = conf.map { |act,con| "#{act.full_name} conflicts with #{con.join(", ")}" }.join ", " # TODO: improve message by saying who activated `con` raise Gem::LoadError, "Unable to activate #{self.full_name}, because #{y}" end end