Some issue in monkey_runner.rb

[xuruijy]

when i run smart_monkey -a {boundle id}，it remaids me bellow，could you help me resolve it?

sh: -c: line 0: idevicecrashreport -u AADA204E-F363-48C8-8B86-D12A308A9509 (Simulator) -e -k /Users/homeqa/smart_monkey_result/report_20170712153821/crash_1' Attempting iOS device system log capture via deviceconsole. Stop iOS system log capture. /Users/homeqa/.rvm/gems/ruby-2.4.0/gems/smart_monkey-0.5.0/lib/smart_monkey/monkey_runner.rb:201:in device': undefined method strip' for nil:NilClass (NoMethodError) from /Users/homeqa/.rvm/gems/ruby-2.4.0/gems/smart_monkey-0.5.0/lib/smart_monkey/monkey_runner.rb:86:in block in run_a_case'
from /Users/homeqa/.rvm/gems/ruby-2.4.0/gems/smart_monkey-0.5.0/lib/smart_monkey/monkey_runner.rb:603:in watch_syslog' from /Users/homeqa/.rvm/gems/ruby-2.4.0/gems/smart_monkey-0.5.0/lib/smart_monkey/monkey_runner.rb:81:in run_a_case'
from /Users/homeqa/.rvm/gems/ruby-2.4.0/gems/smart_monkey-0.5.0/lib/smart_monkey/monkey_runner.rb:48:in block in run' from /Users/homeqa/.rvm/gems/ruby-2.4.0/gems/smart_monkey-0.5.0/lib/smart_monkey/monkey_runner.rb:45:in times'
from /Users/homeqa/.rvm/gems/ruby-2.4.0/gems/smart_monkey-0.5.0/lib/smart_monkey/monkey_runner.rb:45:in run' from /Users/homeqa/.rvm/gems/ruby-2.4.0/gems/smart_monkey-0.5.0/bin/smart_monkey:58:in <top (required)>'
from /Users/homeqa/.rvm/gems/ruby-2.4.0/bin/smart_monkey:23:in load' from /Users/homeqa/.rvm/gems/ruby-2.4.0/bin/smart_monkey:23:in

'
from /Users/homeqa/.rvm/gems/ruby-2.4.0/bin/ruby_executable_hooks:15:in eval' from /Users/homeqa/.rvm/gems/ruby-2.4.0/bin/ruby_executable_hooks:15:in '