最近学习使用Weka,用的版本为3.7.9,想在上面安装libsvm用来分类,但是使用软件包管理器时总是跳出“
There was a problem establishing the package meta data cache.We'll try to use the repository directly.
”的错误信息,详细信息如下:
java.net.UnknownHostException: weka.sourceforge.net
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.