Error: Failed to connect to OmniSharp - mono

Question

Firstly I have already tried the steps outlined in Getting "Error: Failed to connect to OmniSharp" and followed the directions posted in the reddit post mentioned.
I have installed VSCode on OS X Yosemite and I am getting this error when loading an sln.
Error: Failed to connect to OmniSharp
I understand that OmniSharp comes installed with VSCode, but I also have Mono installed as well as dnvm, aspnet/dnx that was installed using brew.
Could anyone please offer a suggestion? I love the look and feel of VSCode and after reading the docs can tell there is some great features. I have been patiently been waiting to do my c# work on my macbook and really looking forward to being able to try VSCode.
Thanks for any suggestions.
Here is the output from my OmniSharp Log:
Starting OmniSharp at '/Volumes/cca/cca.sln'...
[INFORMATION:OmniSharp.Startup] Omnisharp server running on port '2000' at location '/Volumes/cca' on host 930.
[INFORMATION:OmniSharp.AspNet5.AspNet5Paths] Using runtime '/Users/jayrue/.dnx/runtimes/dnx-mono.1.0.0-beta4'.
[INFORMATION:OmniSharp.AspNet5.AspNet5ProjectSystem] Scanning '/Volumes/cca' for ASP.NET 5 projects
[INFORMATION:OmniSharp.AspNet5.AspNet5ProjectSystem] No project.json based projects found
[INFORMATION:OmniSharp.MSBuild.MSBuildProjectSystem] Detecting projects in '/Volumes/cca/cca.sln'.
[WARNING:OmniSharp.MSBuild.MSBuildProjectSystem] Skipped unsupported project type 'http://localhost:63367'
Here is my sln:
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Express 2013 for Web
VisualStudioVersion = 12.0.21005.1
MinimumVisualStudioVersion = 10.0.40219.1
Project("{E24C65DC-7377-472B-9ABA-BC803B73C61A}") = "cca", "http://localhost:63367", "{53236049-2FD4-436E-B20D-8E53D6F9EC7E}"
ProjectSection(WebsiteProperties) = preProject
UseIISExpress = "true"
TargetFrameworkMoniker = ".NETFramework,Version%3Dv2.0"
Debug.AspNetCompiler.VirtualPath = "/localhost_63367"
Debug.AspNetCompiler.PhysicalPath = "E:\inetpub\wwwroot\cca\"
Debug.AspNetCompiler.TargetPath = "PrecompiledWeb\localhost_63367\"
Debug.AspNetCompiler.Updateable = "true"
Debug.AspNetCompiler.ForceOverwrite = "true"
Debug.AspNetCompiler.FixedNames = "false"
Debug.AspNetCompiler.Debug = "True"
Release.AspNetCompiler.VirtualPath = "/localhost_63367"
Release.AspNetCompiler.PhysicalPath = "E:\inetpub\wwwroot\cca\"
Release.AspNetCompiler.TargetPath = "PrecompiledWeb\localhost_63367\"
Release.AspNetCompiler.Updateable = "true"
Release.AspNetCompiler.ForceOverwrite = "true"
Release.AspNetCompiler.FixedNames = "false"
Release.AspNetCompiler.Debug = "False"
SlnRelativePath = "E:\inetpub\wwwroot\cca\"
EndProjectSection
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{53236049-2FD4-436E-B20D-8E53D6F9EC7E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{53236049-2FD4-436E-B20D-8E53D6F9EC7E}.Debug|Any CPU.Build.0 = Debug|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

Answer 1

You need project.json file. That is the project file format VSCode understands. It doesn't understand sln format.

Answer 2

For MSBuild workspaces (those with a sln-file) VSCode supports csproj-files. The solution you have posted just point to a WebSite project ({E24C65DC-7377-472B-9ABA-BC803B73C61A}, http://www.codeproject.com/Reference/720512/List-of-Visual-Studio-Project-Type-GUIDs). As mentioned before, an alternative is DNX workspaces with project.json-files.

Answer 3

Try opening the entire project folder instead of the .sln file. Go to File>Open, and instead of going into the project folder, click on it once to select it, and click open. Visual Studio Code will try to automatically load all the related files in that folder.

Answer 4

the OmniSharpServer runs on port 2000, but ycm client use a random port to connect with the server. this is the cause of the failure.
make the following change will fix this issue:
file:
third_party/ycmd/ycmd/completers/cs/cs_completer.py
""" Start the OmniSharp server """
self._logger.info( 'startup' )
- self._omnisharp_port = utils.GetUnusedLocalhostPort()
+ #self._omnisharp_port = utils.GetUnusedLocalhostPort()
+ self._omnisharp_port = 2000
then remove the cs_completer.pyc and try again.