catkin编译时出现Errno 13错误，求助。

[m0_38119625]

在终端中使用catkin_make命令编译一个最简单的hello_world程序包时出现如下错误，求问是什么原因。

aoltonen@aoltonen-VirtualBox:~$ catkin_make
Base path: /home/aoltonen
Source space: /home/aoltonen/src
Build space: /home/aoltonen/build
Devel space: /home/aoltonen/devel
Install space: /home/aoltonen/install
Creating the toplevel cmake file failed: Could neither symlink nor copy file "/opt/ros/lunar/share/catkin/cmake/toplevel.cmake" to "/home/aoltonen/src/CMakeLists.txt":
- [Errno 13] Permission denied
- [Errno 13] Permission denied: '/home/aoltonen/src/CMakeLists.txt'