今天我成功升级到 Ubuntu 20.10。但是，我注意到我使用的 Atom 文本编辑器在更新后消失了。所以，我尝试使用sudo apt install atom. 那没有用并引发以下错误：
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
atom : Depends: gvfs-bin but it is not installable
E: Unable to correct problems, you have held broken packages.
这是否意味着我升级到 20.10 太快了，Atom 还不支持它？我尝试了一些东西，比如
重新安装 gvfs-bin；
包 gvfs-bin 不可用，但被另一个包引用。这可能意味着该软件包丢失、已过时或只能从其他来源获得
E: 包 'gvfs-bin' 没有安装候选
apt clean, apt autoremove, apt install --fix-broken, apt install -f