Delete ros package path

edit

go to your home folder, on the top menu hit view, then select show hidden files. Click on the .bashrc file and scroll to the bottom and change the line:

export ROS_PACKAGE_PATH=WHATEVER YOU WANT

where WHATEVER YOU WANT is a valid location on your file system, multiple locations can be seperated by a ':' for example mine is

export ROS_PACKAGE_PATH=~/ros_workspace:/opt/ros/electric/stacks