创建catkin_ws工作空间出现catkin_make错误解决方法

ros catkin_maked的时候报错误代码： 
The specified base path “/home/ubuntu/catkin_ws” contains a CMakeLists.txt but “catkin_make” must be invoked in the root of workspace…..

出现这种情况的原因是catkin_init_workspacce的时候，出现下面这句： 
Creating symlink “/home/ubuntu/catkin_ws/CMakeLists.txt” pointing to “/opt/ros/indigo/share/catkin/cmake/toplevel.cmake”

将当前工作空间下的CMakeLists.txt与/ros/下的cmake做了链接

解决方法： 
unlink /home/youpath/catkin_ws/CMakeLists.txt 
参考： 
http://answers.ros.org/question/252980/catkin_make-fail-must-be-invoked-in-the-root-of-workspace/