OSError: [Errno 2] No such file or directory

Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 530, in __bootstrap_inner
self.run()
File "scripts/droidbox.py", line 144, in run
call(['monkeyrunner', 'scripts/monkeyrunner.py', apkName, runPackage, runActivity], stderr=PIPE)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 486, in call
return Popen(*popenargs, **kwargs).wait()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 672, in __init__
errread, errwrite)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1202, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory

why this happened? just because when you execute the command

./droidbox.sh file.apk

you have opened two terminal.

so just close all the terminal and restart a new one,all the problems gone.

you can also see the official answer:

It was a case of trying to run the script in 2 different terminal windows.

That's all, thank you!