我无法将MongoDB安装到Ubuntu 18.04（Bionic Beaver）中。我尝试使用官方链接here进行安装，并按照给出的MongoDB文档进行操作，但是我无法安装并且出现错误。
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mongodb-org is already the newest version (4.0.4).
You might want to run `'apt --fix-broken install'` to correct these.
The following packages have unmet dependencies:
mongodb-org : Depends: mongodb-org-server but it is not going to be installed
Depends: mongodb-org-mongos but it is not going to be installed
Depends: mongodb-org-tools but it is not going to be installed
`E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).`