E: Unable to locate package ros-kinetic-usb-cam

mkdir -p USB/src && cd USB/src
catkin_init_workspace
git clone https://github.com/bosch-ros-pkg/usb_cam.git
cd ..
catkin_make
source devel/setup.bash
echo "source ~/USB/devel/setup.bash" >> ~/.bashrc 
source ~/.bashrc

编译过程报错：

删除usb_cam文件下的package.xml此方法不确定能不能行

可用的是：找一个编译成功的安装包即可，现在github上下载的包包含ros2没办法之间编译回报错。一定要source，不然环境不生效