# File lib/rake/application.rb, line 175
175:     def display_error_message(ex)
176:       trace "#{name} aborted!"
177:       trace ex.message
178:       if options.backtrace
179:         trace ex.backtrace.join("\n")
180:       else
181:         trace Backtrace.collapse(ex.backtrace).join("\n")
182:       end
183:       trace "Tasks: #{ex.chain}" if has_chain?(ex)
184:       trace "(See full trace by running task with --trace)" unless options.backtrace
185:     end