Error:/usr/bin/env: Python: there is no such file or directory

reason ： stay CmakeList.test There is no configuration in it python file

resolvent ：

The first one is ： take python At the beginning of the document

#！/usr/bin/env python

Replace with

#！usr/bin/env python

The second kind ： Connect... Through soft connection python link to python3

Terminal input command ：

sudo ln -s /usr/bin/python3 /usr/bin/python

The third kind of ： stay CmakeList.test It's equipped with python file

catkin_install_python(PROGRAMS
scripts/talker.py
DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
)