OmniSharp: Server Starting never starts after two errors appear

[MRBeussink]

Platform

• [ ] Linux
• [ ] Windows
• [x] OSX

Type

• [x] This is an issue
• [ ] This is a feature request
• [ ] Other

Checklist

• [ ] It hasn't been fixed in the latest master
• [ ] I can reproduce this issue in a fresh Sublime Text install without other extensions

Versions

output of mono --version:

Mono JIT compiler version 5.16.0.221 (2018-06/b63e5378e38 Mon Nov 19 18:08:09 EST 2018)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           normal
	SIGSEGV:       altstack
	Notification:  kqueue
	Architecture:  amd64
	Disabled:      none
	Misc:          softdebug
	Interpreter:   yes
	LLVM:          yes(3.6.0svn-mono-release_60/0b3cb8ac12c)
	GC:            sgen (concurrent by default)

output of msbuild /version:

Microsoft (R) Build Engine version 16.0.40-preview+ge6c3a1f9e4 for Mono
Copyright (C) Microsoft Corporation. All rights reserved.

16.0.40.50150

Details

When starting Sublime Text 3 and opening a C# file the following errors appear in succession:

• OmniSharp : Error talking to http://localhost:PORT/checkreadystatus
• OmniSharp : Error loading project

After this the server attempts to start without changing status from "Sever Starting"

I'm new to C#, so anything you can specify to help diagnosing would be appreciated.