安装好Jdk & Eclipse后，并安装adt 22后，遇到几个问题，如下
1、需要32位的ia32-libs,于是找软件源，找的很幸苦，不是失效就是速度慢，如下
终于找到了，网易的镜像源：
deb http://mirrors.163.com/ubuntu/ oneiric
main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ oneiric-security
main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ oneiric-updates
main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ oneiric-proposed
main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ oneiric-backports
main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ oneiric
main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ oneiric-security
main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ oneiric-updates
main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ oneiric-proposed
main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ oneiric-backports
main restricted universe multiverse
2、apt-get update遇到如下错误
W:
GPG 错误：http://mirrors.163.com precise-proposed Release: 下列签名无效： BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: 无法下载 bzip2:/var/lib/apt/lists/partial/mirrors.163.com_ubuntu_dists_precise-updates_universe_binary-i386_Packages Hash 校验和不符
网上搜索解决办法：
#!/bin/bash
sudo apt-get clean
cd /var/lib/apt
sudo rm -rf lists.old
sudo mv lists lists.old
gpg --delete-key --armor 40976EAF437D05B5
sudo apt-key del 40976EAF437D05B5
gpg --keyserver-options http-proxy --keyserver keyserver.ubuntu.com --recv 0976EAF437D05B5
gpg --export --armor 40976EAF437D05B5 | sudo apt-key add -
sudo mkdir -p lists/partial
sudo apt-get clean
sudo apt-get update
记录一下！