解決virtualbox 安裝增強包的報錯

錯誤信息：

the  system is currently not set up to build kernel modules.

Please install the gcc make perl packages from your distribution.
Please install the Linux kernel “header” files matching the current kernel
for adding new hardware support to the system.
The distribution packages containing the headers are probably:~$ uname -r
        4.15.0-20-generic

sudo apt-get update

sudo apt-get install build-essential linux-headers-4.15.0-20-generic