Omnisharp-vscode: C# Extension is entirely unresponsive

Created on 16 Mar 2020 · 30Comments · Source: OmniSharp/omnisharp-vscode

Issue Description

The C# extension suddenly stopped working for me. Syntax highlighting is okay, but everything else loads indefinitely:

Code Completion
Formatting
Outline
...

All the while, it is consuming 100% CPU resources on one of my cores. I even tried a full fresh install of everything, that didn't help.

Logs

exthost-c2991c.cpuprofile.txt

ms-dotnettools.csharp-unresponsive.cpuprofile.txt

OmniSharp log

OmniSharp Log

Starting OmniSharp server at 16.3.2020, 20:07:45
Target: d:gitHoBCUnityHoBCHoBC.sln

OmniSharp server started.
Path: C:UsersMartin.vscodeextensionsms-dotnettools.csharp-1.21.14.omnisharp1.34.14OmniSharp.exe
PID: 4360

    Starting OmniSharp on Windows 6.2.9200.0 (x64)
    DotNetPath set to dotnet
    Located 2 MSBuild instance(s)
        1: Visual Studio Build Tools 2019 16.5.29911.84 - "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin"
        2: StandAlone 16.4 - "c:\Users\Martin\.vscode\extensions\ms-dotnettools.csharp-1.21.14\.omnisharp\1.34.14\.msbuild\Current\Bin"
    Registered MSBuild instance: Visual Studio Build Tools 2019 16.5.29911.84 - "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin"
    Detecting Cake files in 'd:\git\HoBC\Unity\HoBC'.
    Could not find any Cake files
    Detecting projects in 'd:\git\HoBC\Unity\HoBC\HoBC.sln'.
    Queue project update for 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-firstpass.csproj'
    Queue project update for 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp.csproj'
    Queue project update for 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-Editor.csproj'
    Queue project update for 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-Editor-firstpass.csproj'
    Detecting CSX files in 'd:\git\HoBC\Unity\HoBC'.
    Loading project: d:\git\HoBC\Unity\HoBC\Assembly-CSharp-firstpass.csproj
    Could not find any CSX files
    Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.CSharpFormattingWorkspaceOptionsProvider, Order: 0
    Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.RenameWorkspaceOptionsProvider, Order: 100
    Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.ImplementTypeWorkspaceOptionsProvider, Order: 110
    Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.EditorConfigWorkspaceOptionsProvider, Order: 200
    Configuration finished.
    Omnisharp server running using Stdio at location 'd:\git\HoBC\Unity\HoBC' on host 14832.
    Successfully loaded project file 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-firstpass.csproj'.
    Adding project 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-firstpass.csproj'
    Loading project: d:\git\HoBC\Unity\HoBC\Assembly-CSharp.csproj
    Successfully loaded project file 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp.csproj'.
    Adding project 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp.csproj'
    Loading project: d:\git\HoBC\Unity\HoBC\Assembly-CSharp-Editor.csproj
    Successfully loaded project file 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-Editor.csproj'.
    Adding project 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-Editor.csproj'
    Loading project: d:\git\HoBC\Unity\HoBC\Assembly-CSharp-Editor-firstpass.csproj
    Successfully loaded project file 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-Editor-firstpass.csproj'.
    Adding project 'd:\git\HoBC\Unity\HoBC\Assembly-CSharp-Editor-firstpass.csproj'
    Update project: Assembly-CSharp-firstpass
    Update project: Assembly-CSharp
    Unable to resolve assembly 'd:\git\HoBC\Unity\HoBC\Temp\bin\Debug\Assembly-CSharp-firstpass.dll'
    Update project: Assembly-CSharp-Editor
    Unable to resolve assembly 'd:\git\HoBC\Unity\HoBC\Temp\bin\Debug\Assembly-CSharp-Editor-firstpass.dll'
    Unable to resolve assembly 'd:\git\HoBC\Unity\HoBC\Temp\bin\Debug\Assembly-CSharp-firstpass.dll'
    Unable to resolve assembly 'd:\git\HoBC\Unity\HoBC\Temp\bin\Debug\Assembly-CSharp.dll'
    Update project: Assembly-CSharp-Editor-firstpass
    Unable to resolve assembly 'd:\git\HoBC\Unity\HoBC\Temp\bin\Debug\Assembly-CSharp-firstpass.dll'

C# log

Nothing to paste here; the log is empty.

Environment information

VSCode version: 1.43.0
C# Extension: 1.21.14

Dotnet Information

.NET Core SDK (gem�� "global.json"):
Version: 3.1.200
Commit: c5123d973b

Laufzeitumgebung:
OS Name: Windows
OS Version: 10.0.18362
OS Platform: Windows
RID: win10-x64
Base Path: C:Program Filesdotnetsdk3.1.200

Host (useful for support):
Version: 3.1.2
Commit: 916b5cba26

.NET Core SDKs installed:
2.1.101 [C:Program Filesdotnetsdk]
2.1.602 [C:Program Filesdotnetsdk]
2.2.202 [C:Program Filesdotnetsdk]
3.1.200 [C:Program Filesdotnetsdk]

.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.9 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.16 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.2.3 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.2.8 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.9 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.16 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.2.3 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.2.8 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.2 [C:Program FilesdotnetsharedMicrosoft.AspNetCore.App]
Microsoft.NETCore.App 2.0.6 [C:Program FilesdotnetsharedMicrosoft.NETCore.App]
Microsoft.NETCore.App 2.1.9 [C:Program FilesdotnetsharedMicrosoft.NETCore.App]
Microsoft.NETCore.App 2.1.16 [C:Program FilesdotnetsharedMicrosoft.NETCore.App]
Microsoft.NETCore.App 2.2.3 [C:Program FilesdotnetsharedMicrosoft.NETCore.App]
Microsoft.NETCore.App 2.2.8 [C:Program FilesdotnetsharedMicrosoft.NETCore.App]
Microsoft.NETCore.App 3.1.2 [C:Program FilesdotnetsharedMicrosoft.NETCore.App]
Microsoft.WindowsDesktop.App 3.1.2 [C:Program FilesdotnetsharedMicrosoft.WindowsDesktop.App]

To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-download

Visual Studio Code Extensions

|Extension|Author|Version|
|---|---|---|
|csharp|ms-dotnettools|1.21.14|
|unity-debug|Unity|2.7.4|
|vscode-eclipse-keybindings|alphabotsec|0.10.0|
|vscode-icons|vscode-icons-team|10.0.0|;

Performance Resolved-Fixed Triaged

Source

MartinHaeusler

👍5

Most helpful comment

Please try the v1.21.15 prerelease and let us know if it resolves your performance issue.

JoeRobich on 19 Mar 2020

🎉4 ❤2

All 30 comments

@MartinHaeusler Would it be possible for you to give us access to your project? We've had lots of similar reports but have had trouble getting this issue to reproduce.

JoeRobich on 16 Mar 2020

@JoeRobich It's a Unity project which is several gigabytes in size - the upload alone would take days with my connection. I can try to extract the code files and strip all art assets, this would bring it down to a more reasonable size, but it should still compile. Would that help?

MartinHaeusler on 16 Mar 2020

@MartinHaeusler Please, just the projects and code would be very helpful.

JoeRobich on 16 Mar 2020

@JoeRobich here's the project, stripped of all art assets. It's still 33MB because it contains the assemblies and DLLs that come with Unity, so I can't upload it directly as a github attachment. Here's a link to my dropbox instead:

https://www.dropbox.com/s/jym9vkxb80ii2zo/HeirOfBlackwoodCastle.zip?dl=0

Reproduction steps of the issue:

have an up-to-date installation of VSCode
install the plug-ins listed in the opening post
downlaod the archive from the dropbox
extract the archive
open the top-level folder as VSCode project
open any C# file and try to edit it, try to see if you can get code completion and try to save it.

MartinHaeusler on 17 Mar 2020

👍2

Experiencing same issue here.

I managed to work around this issue by rolling back to v1.21.12 as mentioned in #3660 (kristoff3r's comment).

In Log (Shared) :

[sharedprocess] [info]Problem invoking 'GetCodeActions' on OmniSharp

OmniSharp log:

Starting OmniSharp server at 3/17/2020, 8:53:08 PM
    Target: /Users/tsubasa_kondo/git/wemori/wemori-client/wemori-client.sln

OmniSharp server started with Mono 6.8.0.
    Path: /Users/tsubasa_kondo/.vscode/extensions/ms-dotnettools.csharp-1.21.14/.omnisharp/1.34.14/omnisharp/OmniSharp.exe
    PID: 14245

[info]: OmniSharp.Stdio.Host
        Starting OmniSharp on MacOS 10.14.6 (x64)
[info]: OmniSharp.Services.DotNetCliService
        DotNetPath set to dotnet
[info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
        Located 2 MSBuild instance(s)
            1: Mono 16.4 - "/usr/local/Cellar/mono/6.8.0.105/lib/mono/msbuild/Current/bin"
            2: StandAlone 16.4 - "/Users/tsubasa_kondo/.vscode/extensions/ms-dotnettools.csharp-1.21.14/.omnisharp/1.34.14/omnisharp/.msbuild/Current/Bin"
[info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
        Registered MSBuild instance: Mono 16.4 - "/usr/local/Cellar/mono/6.8.0.105/lib/mono/msbuild/Current/bin"
            CscToolExe = csc.exe
            CscToolPath = /Users/tsubasa_kondo/.vscode/extensions/ms-dotnettools.csharp-1.21.14/.omnisharp/1.34.14/omnisharp/.msbuild/Current/Bin/Roslyn
[info]: OmniSharp.Cake.CakeProjectSystem
        Detecting Cake files in '/Users/tsubasa_kondo/git/wemori/wemori-client'.
[info]: OmniSharp.Cake.CakeProjectSystem
        Could not find any Cake files
[info]: OmniSharp.MSBuild.ProjectSystem
        Detecting projects in '/Users/tsubasa_kondo/git/wemori/wemori-client/wemori-client.sln'.
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.UIWidgets.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsGallery.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsSample.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/Assembly-CSharp.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.InternalAPIEngineBridge.024.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsTheatre.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.UIWidgets.Editor.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsSample.Editor.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsGallery.Editor.csproj'
[info]: OmniSharp.Script.ScriptProjectSystem
        Detecting CSX files in '/Users/tsubasa_kondo/git/wemori/wemori-client'.
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/Unity.UIWidgets.csproj
[info]: OmniSharp.Script.ScriptProjectSystem
        Could not find any CSX files
[info]: OmniSharp.WorkspaceInitializer
        Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.CSharpFormattingWorkspaceOptionsProvider, Order: 0
[info]: OmniSharp.WorkspaceInitializer
        Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.RenameWorkspaceOptionsProvider, Order: 100
[info]: OmniSharp.WorkspaceInitializer
        Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.ImplementTypeWorkspaceOptionsProvider, Order: 110
[info]: OmniSharp.WorkspaceInitializer
        Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.EditorConfigWorkspaceOptionsProvider, Order: 200
[info]: OmniSharp.WorkspaceInitializer
        Configuration finished.
[info]: OmniSharp.Stdio.Host
        Omnisharp server running using Stdio at location '/Users/tsubasa_kondo/git/wemori/wemori-client' on host 14209.
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.UIWidgets.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.UIWidgets.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsGallery.csproj
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsGallery.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsGallery.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsSample.csproj
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsSample.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsSample.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/Assembly-CSharp.csproj
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/Assembly-CSharp.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/Assembly-CSharp.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/Unity.InternalAPIEngineBridge.024.csproj
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.InternalAPIEngineBridge.024.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.InternalAPIEngineBridge.024.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsTheatre.csproj
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsTheatre.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsTheatre.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/Unity.UIWidgets.Editor.csproj
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.UIWidgets.Editor.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/Unity.UIWidgets.Editor.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsSample.Editor.csproj
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsSample.Editor.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsSample.Editor.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsGallery.Editor.csproj
[info]: OmniSharp.MSBuild.ProjectManager
        Successfully loaded project file '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsGallery.Editor.csproj'.
[info]: OmniSharp.MSBuild.ProjectManager
        Adding project '/Users/tsubasa_kondo/git/wemori/wemori-client/UIWidgetsGallery.Editor.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: Unity.UIWidgets
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.InternalAPIEngineBridge.024.dll'
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: UIWidgetsGallery
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.UIWidgets.dll'
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: UIWidgetsSample
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.UIWidgets.dll'
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: Assembly-CSharp
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsGallery.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsGallery.Editor.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsSample.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsSample.Editor.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsTheatre.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.InternalAPIEngineBridge.024.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.UIWidgets.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.UIWidgets.Editor.dll'
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: Unity.InternalAPIEngineBridge.024
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: UIWidgetsTheatre
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsGallery.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsSample.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.UIWidgets.dll'
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: Unity.UIWidgets.Editor
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.UIWidgets.dll'
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: UIWidgetsSample.Editor
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsSample.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.UIWidgets.dll'
[info]: OmniSharp.MSBuild.ProjectManager
        Update project: UIWidgetsGallery.Editor
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/UIWidgetsGallery.dll'
[warn]: OmniSharp.MSBuild.ProjectManager
        Unable to resolve assembly '/Users/tsubasa_kondo/git/wemori/wemori-client/Temp/bin/Debug/Unity.UIWidgets.dll'
[info]: OmniSharp.Roslyn.CSharp.Services.Diagnostics.ReAnalyzeService
        Queue analysis for all projects.
[info]: OmniSharp.Roslyn.CSharp.Services.Diagnostics.ReAnalyzeService
        Queue analysis for all projects.

TsubasaK111 on 17 Mar 2020

👍2

I have the same issue. And it is also reproduced in the unity project. I think it may be related to unity

FFBarney on 17 Mar 2020

I can say with very high confidence that Unity is not to blame. The project was working fine for me for several months now, and I didn't upgrade Unity itself lately, so the *.sln and *.csproj files are still the same (also according to my git history).

However, the OmniSharp binary updates itself in the VSCode extension. That in and on itself is very nice, however since one of the more recent updates, things stopped working and cause the issue we are all experiencing.

What might be an issue now with the newer versions of OmniSharp is this crazy forest of *.csproj modules that Unity creates. However, it has always done that. So maybe it's just the new OmniSharp version that runs into an infinite loop somewhere when it tries to load/resolve the project dependencies. That's just my intuition, and it's a long shot.

Possible culprits from my perspective are:

VScode update (somewhat unlikely, but not impossible)
C# plugin update (has there been any update lately?)
OmniSharp update

MartinHaeusler on 17 Mar 2020

👍1

I think it may be related to unity

It's not Unity.
I have the same symptoms in an ASP.NET Core project.

rjgotten on 18 Mar 2020

@TsubasaK111 did you roll back this plugin or the OmniSharp language server itself? How did you manage to keep it from auto-updating again after rolling it back?

@JoeRobich is it possible that OmniSharp is the real culprit here?

MartinHaeusler on 18 Mar 2020

@JoeRobich is it possible that OmniSharp is the real culprit here?

we didn't update OmniSharp when moving from v1.21.12 to v1.21.13 so it doesn't seem like that's the case

filipw on 18 Mar 2020

A change was made where we search through sub-directories of the project directory looking for a launchsettings.json file. Recent investigations point to this being problematic for projects with many nested directories such as those containing a node_modules folder. see https://github.com/OmniSharp/omnisharp-vscode/issues/3664#issuecomment-600795999

JoeRobich on 18 Mar 2020

👍2

Or a Unity PackageCache as I am discovering.

JoeRobich on 18 Mar 2020

👍1

@JoeRobich mind you, I've deleted a lot of folders from my unity packagecache before uploading, so it's not even representative of a real project. There are entire documentation and example folders in there, the file structure is comparable in size (both breadth and depth) to that of a node_modules folder.

MartinHaeusler on 18 Mar 2020

thanks @JoeRobich this really looks like the culprit 👍

filipw on 18 Mar 2020

I also have the issue with a fairly big Unity project, starting at 1.21.13.
Reverting to 1.21.12 using .vsix and disabling automatic updates is the solution right now.

Yazir on 18 Mar 2020

Please try the v1.21.15 prerelease and let us know if it resolves your performance issue.

JoeRobich on 19 Mar 2020

🎉4 ❤2

@JoeRobich using v1.21.15, the unity project issue is fixed.

Centny on 19 Mar 2020

🎉1

Seems to be working just fine. Thank you @JoeRobich !

Yazir on 19 Mar 2020

@TsubasaK111 did you roll back this plugin or the OmniSharp language server itself? How did you manage to keep it from auto-updating again after rolling it back?

@MartinHaeusler The above prerelease resolves this, but for future reference, I did exactly as per kristoff3r's comment:

uninstall CSharp extension in VS Code
(cmd + shift + P => show installed extensions => Csharp => uninstall)
Go to this repo's releases page and download their previous version v1.21.12
Shut down VS Code
Open a console and execute command code --install-extension ~/Downloads/csharp-1.21.12.vsix where ~/Downloads/ is the directory wherever you downloaded the file in step 2.
Open VS Code, Make Omnisharp analyze your project.
Dismiss any prompts in VS Code to update the extension.

TsubasaK111 on 19 Mar 2020

v1.21.15 confirmed as functional, thank you for the hard work @JoeRobich ! ❤️

TsubasaK111 on 19 Mar 2020

v1.21.15 is work but Unity Debug still got problem, the breakpoint can't hit :(

laminhtruong on 19 Mar 2020

Just adding another confirm that both 1.21.15 and 1.21.12 work for my Unity project, while 1.21.14 and 1.21.13 do not.

caseypugh on 19 Mar 2020

Running into the same problem, but it does not work on 1.21.15, or 1.21.12. Using Linux Ubuntu 19.10, VS-Code, Unity. Wondering if there's simply no Linux Ubuntu 19.10 support.

lesreaper on 20 Mar 2020

I had the same problem on mac. Tried a lot methods, didn't work. Today I deleted .vscode/, .dotnet/, removed vscode, then downloaded a new one, did a fresh install. The CPU problem is gone. I don't know why. I think it's worth a try.

dorian-bian on 20 Mar 2020

1.21.15 was released to the marketplace so it worked for you on reinstall

filipw on 20 Mar 2020

👍1

Unity Debugger just completely freezes on breakpoints now :(

ROBYER1 on 20 Mar 2020

@laminhtruong @ROBYER1 I see a few open issues about breakpoints on Unity Debugger's GitHub. Maybe you can find one that matches what you are seeing and provide your details. https://github.com/Unity-Technologies/vscode-unity-debug/issues

JoeRobich on 20 Mar 2020

@MartinHaeusler Thanks for the report. Closing this now that 1.21.15 has been published.

JoeRobich on 20 Mar 2020

@laminhtruong @ROBYER1 I see a few open issues about breakpoints on Unity Debugger's GitHub. Maybe you can find one that matches what you are seeing and provide your details. https://github.com/Unity-Technologies/vscode-unity-debug/issues

Thankyou for addressing this, the issue is very much project and Unity version agnostic, I have experienced it with Unity 2019.3 and 2020.1 beta on over 5 projects on each as well as a blank project with a very basic test script to debug.

I hope the issue can be addressed as it is simple to reproduce in a fresh Unity project.

ROBYER1 on 20 Mar 2020

@JoeRobich thank you for your efforts. Your help is highly appreciated!

MartinHaeusler on 20 Mar 2020

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