LINUX 面板安装失败请问是为什么啊

安装出现这个，但是那个目录下的文件存在

install.sh: line 71: xz: command not found

tar: /usr/local/phpstudy/soft/php/php-5.5.38.tar: Cannot open: No such file or directory

tar: Error is not recoverable: exiting now