Rider on Ubuntu Shows Mono Not Installed

Hey guys, I am wanting to test Rider for the Xamarin ability, but I have installed on Ubuntu 18.10 and installed mono but when I launch Rider and select New Solution and Xamarin solution I get a message saying that Mono is not found.  If I click the link to install mono, I have already followed the guide multiple times and run all of the below commands

sudo apt install mono-devel
sudo apt install mono-complete
sudo apt install mono-dbg
sudo apt install referenceassemblies-pcl
sudo apt install ca-certificates-mono
sudo apt install mono-xsp4

Is rider not compatible with Ubuntu 18.10 or am I missing something here?

And this is my output from mono --version

mono --version
Mono JIT compiler version 5.12.0.309 (tarball Tue Oct 23 17:03:16 UTC 2018)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
        TLS:           __thread
        SIGSEGV:       altstack
        Notifications: epoll
        Architecture:  amd64
        Disabled:      none
        Misc:          softdebug
        Interpreter:   yes
        LLVM:          supported, not enabled.
        GC:            sgen (concurrent by default)