local stack_trace = debug.traceback('Error: ' .. tostring(err), --[[stack frame]]2):gsub('\n[^\n]+$', '')
  live.send_run_time_error_to_driver(stack_trace)
  Error_message = 'Something is wrong. Sorry!\n\n'..stack_trace..'\n\n'..

    "(Note: function names above don't include outer tables. So functions like on.draw might show up as just 'draw', etc.)\n\n"..
    'Options:\n'..
    '- press "ctrl+c" (without the quotes) to copy this message to your clipboard to send to me: ak@akkartik.com\n'..
    '- press any other key to retry, see if things start working again\n'..

  Error_count = Error_count+1
  if Error_count > 1 then
    Error_message = Error_message..('\n\nThis is error #%d in this session; things will probably not improve in this session. Please copy the message and send it to me: ak@akkartik.com.'):format(Error_count)