當我嘗試安裝mongodb那時我在命令行中發現下面的錯誤請幫我安裝它。在ubuntu下安裝mongodb或postfix時出錯
dpkg: error processing package mongodb (--configure):
dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.21-0ubuntu4) ...
No apport report written because the error message indicates its a followup error from a previous failure.
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for systemd (219-7ubuntu6) ...
Errors were encountered while processing:
postfix
mongodb-server
mongodb
E: Sub-process /usr/bin/dpkg returned an error code (1)