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如何安装wvdial而不出现以下错误？
当我运行命令时： sudo apt-get install wvdial 我收到此错误消息： error p@p:~$ sudo apt-get install wvdial Reading package lists... Done Building dependency tree Reading state information... Done Package wvdial is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available …