我正在尝试从 debian 9 中的命令行安装 mongodb。在运行安装命令时，我收到以下错误
Reading package lists... Done
Building dependency tree
Reading state information... Done
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:
mongodb-org : Depends: mongodb-org-server but it is not going to be installed
E: Unable to correct problems, you have held broken packages.