Omnisharp-vscode: Hangs on .net core 2.0 web project load

[mattwoberts]

Environment data

dotnet --info output:

.NET Command Line Tools (2.0.0)

Product Information:
 Version:            2.0.0
 Commit SHA-1 hash:  cdcd1928c9

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.12
 OS Platform: Darwin
 RID:         osx.10.12-x64
 Base Path:   /usr/local/share/dotnet/sdk/2.0.0/

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.0
  Build    : e8b8861ac7faf042c87a5c2f9f2d04c98b69f28d
VS Code version:
C# Extension version:

Steps to reproduce

I have a .net solution, consisting of a web project and one class assembly. I've recently upgraded the solution to .net 2.0, and it seems to have broken vs code. When I open the .sln or the web.csproj file, I get the following output:

Starting OmniSharp server at 9/3/2017, 10:12:27 PM
    Target: /Users/matt/dev/MyProject/MyProject.Web

OmniSharp server started wth Mono
    Path: /Users/matt/.vscode/extensions/ms-vscode.csharp-1.12.1/.omnisharp/run
    PID: 2069

OmniSharp: -s /Users/matt/dev/MyProject/MyProject.Web --hostPID 2035 --stdio DotNet:enablePackageRestore=false --encoding utf-8 --loglevel information formattingOptions:useTabs=false formattingOptions:tabSize=4 formattingOptions:indentationSize=4
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Startup","Message":"Omnisharp server running using Stdio at location '/Users/matt/dev/MyProject/MyProject.Web' on host 2035."},"Seq":1,"Type":"event"}
[info]: OmniSharp.DotNet.DotNetProjectSystem
        Initializing in /Users/matt/dev/MyProject/MyProject.Web
[info]: OmniSharp.DotNet.DotNetProjectSystem
        Auto package restore: False
[info]: OmniSharp.DotNet.DotNetProjectSystem
        Update workspace context
[info]: OmniSharp.DotNet.DotNetProjectSystem
        Resolving projects references
[info]: OmniSharp.MSBuild.MSBuildProjectSystem
        OmniSharp initialized with Mono MSBuild.
    MSBUILD_EXE_PATH: /Library/Frameworks/Mono.framework/Versions/5.2.0/lib/mono/msbuild/15.0/bin/MSBuild.dll
    MSBuildExtensionsPath: /Library/Frameworks/Mono.framework/Versions/5.2.0/lib/mono/xbuild
    TargetFrameworkRootPath: /Library/Frameworks/Mono.framework/Versions/5.2.0/lib/mono/xbuild-frameworks
    RoslynTargetsPath: /Users/matt/.vscode/extensions/ms-vscode.csharp-1.12.1/.omnisharp/omnisharp/msbuild/Roslyn
    CscToolPath: /Users/matt/.vscode/extensions/ms-vscode.csharp-1.12.1/.omnisharp/omnisharp/msbuild/Roslyn

[info]: OmniSharp.MSBuild.MSBuildProjectSystem
        No solution files found in '/Users/matt/dev/MyProject/MyProject.Web'
[info]: OmniSharp.MSBuild.MSBuildProjectSystem
        Loading project: /Users/matt/dev/MyProject/MyProject.Web/MyProject.Web.csproj
[ERROR] Error: OmniSharp server load timed out. Use the 'omnisharp.projectLoadTimeout' setting to override the default delay (one minute).

If I open the class library .csproj, then it works perfectly. I can dotnet build the solution without issue.

Let me know if you need more information, thanks!

[DustinCampbell]

Hi, is there any chance you could provide the project? It'd definitely help us reproduce the issue.

[donniefitz2]

I have the same problem. For some reason Omnisharp takes a very long time to open my solution. I temporarily solved it by extending the timeout. It takes a about 5 minutes to load, but it works. Add this line to your User Settings. "omnisharp.projectLoadTimeout": 600

[mattwoberts]

Thanks chaps, but I sorted it.... I found that the issue wasn't omnisharp at all, it was msbuild - msbuld was hanging when I tried to build the web project - this was in turn upsetting omnisharp.

The cause of the issue turned out to some images I had in the wwwroot folder - 5000 of them, once I added this to the .csproj all was well:

<EnableDefaultItems>False</EnableDefaultItems>