我尝试安装 mod_ssl,我使用此命令apt-get install mod_ssl进行安装,但出现错误提示unable to locate package mod_ssl.
执行上述命令后,我得到以下输出
Reading package list.. Done
Build dependency tree
Reading state information done..
E:unable to locate package mod_ssl
Run Code Online (Sandbox Code Playgroud)
我该如何解决?