Note, selecting 'libnl-genl-3-dev' for regex 'libnl-genl-3.dev'
Package libnl-dev 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 from another source
E: Package 'libnl-dev' has no installation candidate
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解决方案:更新包
sudo apt-get -y update
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5、更新包失败
Err:15 https://download.docker.com/linux/ubuntu bionic Release Could not wait for server fd - select (11: Resource temporarily unavailable) [IP: 198.18.0.39 443] Reading package lists... Done E: The repository 'https://download.docker.com/linux/ubuntu bionic Release' no longer has a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.