how to fix usr bin env ruby no such processing method usr bin env ubuntu usr bin env python no such processing method usr bin env roslaunch no such file or directory env python r no such file or directory error usr bin env php r fix python no such file or directory error usr bin env php r linux redhat8 usr bin env python python error usr bin env python3 no mon issues with ev3dev lang python installation problem on ubuntu 20 04 processing method usr bin env usr bin env docker on windows usr bin env bash r env bash r no such file or directory 调用python脚本报错 usr bin env python linux redhat8 usr bin env python