I got the error below while run ee site create [site] --wpfc --letsencrypt
2017-09-21 14:57:11,948 (INFO) ee : Installing packages, please wait… Reading package lists… Building dependency tree… Reading state information… 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:
nginx-custom : Depends: nginx-common (= 1.10.3-10ppa~stable) but 1.12.1-1~dotdeb+8.1 is to be installed
nginx-ee : Depends: nginx-common (= 1.10.3-10ppa~stable) but 1.12.1-1~dotdeb+8.1 is to be installed
E: Unable to correct problems, you have held broken packages.
2017-09-21 14:57:12,289 (INFO) ee : Oops Something went wrong!!
2017-09-21 14:57:12,290 (ERROR) ee : Check logs for reason
tail /var/log/ee/ee.log & Try Again!!!