Ubantu 安装包的时候cannot locate package pcap，log4cpp安装的问题_cant locate package

1. 首先要确定包的完整名字，比如列举的pcap，log4cpp等包都是因为包的名称不完整，所有无法定位的情况。
   这个时候需要使用

apt list | grep xxx
1

xxx为找不到的库的名字，如

apt list | grep pcap
1

接下来就可以看到一堆库，尽量找libxxx-dev的安装，如果不行再安装别的库

2.可能是源不行，建议换源。

备份 以及修改

sudo cp /etc/apt/sources.list   /etc/apt/sources.list.old
sudo gedit /etc/apt/sources.list

1
2
3

删除里面的所有内容，然后把阿里源镜像复制进去。

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

1
2
3
4
5
6
7
8
9
10
11