I hope not Jason. I am running into the same issue on Xenial:
2017-09-27 21:48:07 DEBUG install percona-xtradb-cluster-server-5.6 : Depends: libevent-2.1-6 (>= 2.1.8-stable) but it is not installable
2017-09-27 21:48:07 DEBUG install E: Unable to correct problems, you have held broken packages.
I hope not Jason. I am running into the same issue on Xenial:
2017-09-27 21:48:07 DEBUG install percona- xtradb- cluster- server- 5.6 : Depends: libevent-2.1-6 (>= 2.1.8-stable) but it is not installable
2017-09-27 21:48:07 DEBUG install E: Unable to correct problems, you have held broken packages.