在使用了一段时间16.04之后,我最近安装了Ubuntu20.04。我正在尝试安装学校的VPN客户端,它需要以下3个包: libqtcore4、libqtgui4和libgnome-keyring0 0。
当我尝试用sudo apt install libqtgui4安装时,我会得到以下错误
Package libqtgui4 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only avai
我试图在我的ubuntu上安装Ruby on rails,我已经安装了所有的ruby on rails,我已经创建了我的ruby on rails项目,但是当我运行Ruby服务器时,他们说“运行包安装”,但是每当我运行它时,我就会得到:
/snap/ruby/247/lib/ruby/3.1.0/rubygems.rb:1340:in `rescue in <top (required)>': undefined method `rubyforge_project=' for class `Gem::Specification' (NameError)
Lo