新手求助，安装虚拟键盘不成功，找不到autoreconf

按微雪安装步骤
到了sudo ./autogen.sh
提示：
./autogen.sh: 2:  ./autogen.sh: autoreconf: not found

按百度搜到的
sudo apt-get install autoconf automake libtool
还是解决不了。

sudo apt-get install libfakekey-dev libpng-dev libxft-dev autoconf libtool -y时
提示xtrans-dev 未认证（The following packages cannot be authenticated!）
选择without verification
出现一大堆
Err http: // archive.raspberrypi.org/debian/......
Temporary failure resolving 'archive.raspberrypi.org'

执行：sudo apt-get install libfakekey-dev libpng-dev libxft-dev autoconf libtool 时发现
提示xtrans-dev（The following packages cannot be authenticated!）没认证？
然后选择without verification
出现一大堆
Err http://archive.raspberrypi.org/.......
Temporary failure resolving 'archive.raspberrypi.org'

sudo apt-get install libfakekey-dev libpng-dev libxft-dev autoconf libtool -y时
提示xtrans-dev 未认证（The following packages cannot be authenticated!）
选择without verification
出现一大堆
Err http://archive.raspberrypi.org/debian/......
Temporary failure resolving 'archive.raspberrypi.org'

解决了，没联网。
我用PC 通过Putty连Pi
PC有联网，Pi没联网。
晕倒