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"Type or namespace name ... could not be found" for some symbols

See original GitHub issue

Issue Description

Opened a Unity project that previously worked and now some symbols are not recognized.

Steps to Reproduce

Open project

Expected Behavior

No errors

Actual Behavior

Several erroneous errors about missing symbols. In the logs there a System.ArgumentOutOfRangeException as a response.

Logs

OmniSharp log

Starting OmniSharp server at 11/26/2020, 9:44:34 AM Target: /home/megan/w/CVTest/CVTest.sln

OmniSharp server started with Mono 6.8.0. Path: /home/megan/.vscode/extensions/ms-dotnettools.csharp-1.23.6/.omnisharp/1.37.3/omnisharp/OmniSharp.exe PID: 2983

    Starting OmniSharp on fedora 33.0 (x64)

    DotNetPath set to dotnet

    Located 1 MSBuild instance(s)
        1: StandAlone 16.8.0 - "/home/megan/.vscode/extensions/ms-dotnettools.csharp-1.23.6/.omnisharp/1.37.3/omnisharp/.msbuild/Current/Bin"

    MSBUILD_EXE_PATH environment variable set to '/home/megan/.vscode/extensions/ms-dotnettools.csharp-1.23.6/.omnisharp/1.37.3/omnisharp/.msbuild/Current/Bin/MSBuild.exe'

    Registered MSBuild instance: StandAlone 16.8.0 - "/home/megan/.vscode/extensions/ms-dotnettools.csharp-1.23.6/.omnisharp/1.37.3/omnisharp/.msbuild/Current/Bin"
        CscToolExe = csc.exe
        MSBuildToolsPath = /home/megan/.vscode/extensions/ms-dotnettools.csharp-1.23.6/.omnisharp/1.37.3/omnisharp/.msbuild/Current/Bin
        CscToolPath = /home/megan/.vscode/extensions/ms-dotnettools.csharp-1.23.6/.omnisharp/1.37.3/omnisharp/.msbuild/Current/Bin/Roslyn
        BypassFrameworkInstallChecks = true
        MSBuildExtensionsPath = /home/megan/.vscode/extensions/ms-dotnettools.csharp-1.23.6/.omnisharp/1.37.3/omnisharp/.msbuild

    Detecting Cake files in '/home/megan/w/CVTest'.

    Could not find any Cake files

    Detecting projects in '/home/megan/w/CVTest/CVTest.sln'.

    Queue project update for '/home/megan/w/CVTest/UnityEngine.UI.csproj'

    Queue project update for '/home/megan/w/CVTest/Assembly-CSharp.csproj'

    Queue project update for '/home/megan/w/CVTest/Unity.2D.Sprite.Editor.csproj'

    Queue project update for '/home/megan/w/CVTest/UnityEditor.UI.csproj'

    Queue project update for '/home/megan/w/CVTest/Unity.2D.Tilemap.Editor.csproj'

    Detecting CSX files in '/home/megan/w/CVTest'.

    Could not find any CSX files

    Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.CSharpFormattingWorkspaceOptionsProvider, Order: 0

    Loading project: /home/megan/w/CVTest/UnityEngine.UI.csproj

    Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.Completion.CompletionOptionsProvider, 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.BlockStructureWorkspaceOptionsProvider, Order: 140

    Configuration finished.

    Omnisharp server running using Stdio at location '/home/megan/w/CVTest' on host 2831.

    Successfully loaded project file '/home/megan/w/CVTest/UnityEngine.UI.csproj'.

    Adding project '/home/megan/w/CVTest/UnityEngine.UI.csproj'

    Loading project: /home/megan/w/CVTest/Assembly-CSharp.csproj

    Successfully loaded project file '/home/megan/w/CVTest/Assembly-CSharp.csproj'.

    Adding project '/home/megan/w/CVTest/Assembly-CSharp.csproj'

    Loading project: /home/megan/w/CVTest/Unity.2D.Sprite.Editor.csproj

    Successfully loaded project file '/home/megan/w/CVTest/Unity.2D.Sprite.Editor.csproj'.

    Adding project '/home/megan/w/CVTest/Unity.2D.Sprite.Editor.csproj'

    Loading project: /home/megan/w/CVTest/UnityEditor.UI.csproj

    Successfully loaded project file '/home/megan/w/CVTest/UnityEditor.UI.csproj'.

    Adding project '/home/megan/w/CVTest/UnityEditor.UI.csproj'

    Loading project: /home/megan/w/CVTest/Unity.2D.Tilemap.Editor.csproj

    Successfully loaded project file '/home/megan/w/CVTest/Unity.2D.Tilemap.Editor.csproj'.

    Adding project '/home/megan/w/CVTest/Unity.2D.Tilemap.Editor.csproj'

    Update project: UnityEngine.UI

    Update project: Assembly-CSharp

    Update project: Unity.2D.Sprite.Editor

    Update project: UnityEditor.UI

    Update project: Unity.2D.Tilemap.Editor

    ************  Response ************

{ “Request_seq”: 8, “Command”: “/v2/highlight”, “Running”: true, “Success”: false, “Message”: “"System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.\nParameter name: line\n at Microsoft.CodeAnalysis.Text.LinePosition…ctor (System.Int32 line, System.Int32 character) [0x00004] in <74e762f007514b0991a005183ec8dcb2>:0 \n at OmniSharp.Roslyn.CSharp.Services.SemanticHighlight.SemanticHighlightService.Handle (OmniSharp.Models.SemanticHighlight.SemanticHighlightRequest request) [0x00146] in <8ca5e445b15640a0986680e5a0180b25>:0 \n at OmniSharp.Endpoint.EndpointHandler2[TRequest,TResponse].GetFirstNotEmptyResponseFromHandlers (OmniSharp.Endpoint.Exports.ExportHandler2[TRequest,TResponse][] handlers, TRequest request) [0x00099] in <9e06207949b04d41ac60c7c691c8ecbb>:0 \n at OmniSharp.Endpoint.EndpointHandler2[TRequest,TResponse].HandleRequestForLanguage (System.String language, TRequest request, OmniSharp.Protocol.RequestPacket packet) [0x00163] in <9e06207949b04d41ac60c7c691c8ecbb>:0 \\n at OmniSharp.Endpoint.EndpointHandler2[TRequest,TResponse].Process (OmniSharp.Protocol.RequestPacket packet, OmniSharp.Endpoint.LanguageModel model, Newtonsoft.Json.Linq.JToken requestObject) [0x0024b] in <9e06207949b04d41ac60c7c691c8ecbb>:0 \n at OmniSharp.Stdio.Host.HandleRequest (System.String json, Microsoft.Extensions.Logging.ILogger logger) [0x000e7] in <add5f40a6e784fcca3e930b59965388b>:0 "”, “Body”: null, “Seq”: 66, “Type”: “response” } fail: OmniSharp.Stdio.Host ************ Response ************ { “Request_seq”: 14, “Command”: “/v2/highlight”, “Running”: true, “Success”: false, “Message”: “"System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.\nParameter name: line\n at Microsoft.CodeAnalysis.Text.LinePosition…ctor (System.Int32 line, System.Int32 character) [0x00004] in <74e762f007514b0991a005183ec8dcb2>:0 \n at OmniSharp.Roslyn.CSharp.Services.SemanticHighlight.SemanticHighlightService.Handle (OmniSharp.Models.SemanticHighlight.SemanticHighlightRequest request) [0x00146] in <8ca5e445b15640a0986680e5a0180b25>:0 \n at OmniSharp.Endpoint.EndpointHandler2[TRequest,TResponse].GetFirstNotEmptyResponseFromHandlers (OmniSharp.Endpoint.Exports.ExportHandler2[TRequest,TResponse][] handlers, TRequest request) [0x00099] in <9e06207949b04d41ac60c7c691c8ecbb>:0 \n at OmniSharp.Endpoint.EndpointHandler2[TRequest,TResponse].HandleRequestForLanguage (System.String language, TRequest request, OmniSharp.Protocol.RequestPacket packet) [0x00163] in <9e06207949b04d41ac60c7c691c8ecbb>:0 \\n at OmniSharp.Endpoint.EndpointHandler2[TRequest,TResponse].Process (OmniSharp.Protocol.RequestPacket packet, OmniSharp.Endpoint.LanguageModel model, Newtonsoft.Json.Linq.JToken requestObject) [0x0024b] in <9e06207949b04d41ac60c7c691c8ecbb>:0 \n at OmniSharp.Stdio.Host.HandleRequest (System.String json, Microsoft.Extensions.Logging.ILogger logger) [0x000e7] in <add5f40a6e784fcca3e930b59965388b>:0 "”, “Body”: null, “Seq”: 83, “Type”: “response” }

C# log

empty

Environment information

VSCode version: 1.51.1 C# Extension: 1.23.6

Mono Information OmniSharp using global mono :6.8.0
Dotnet Information .NET Core SDK (reflecting any global.json): Version: 3.1.109 Commit: 32ced2d411

Runtime Environment: OS Name: fedora OS Version: 33 OS Platform: Linux RID: fedora.33-x64 Base Path: /usr/lib64/dotnet/sdk/3.1.109/

Host (useful for support): Version: 3.1.9 Commit: 774fc3d6a9

.NET Core SDKs installed: 3.1.109 [/usr/lib64/dotnet/sdk]

.NET Core runtimes installed: Microsoft.AspNetCore.App 3.1.9 [/usr/lib64/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 3.1.9 [/usr/lib64/dotnet/shared/Microsoft.NETCore.App]

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

Visual Studio Code Extensions
Extension Author Version
ayu teabyii 0.20.1
csharp ms-dotnettools 1.23.6
haskell haskell 1.2.0
language-haskell justusadam 3.3.0
material-icon-theme PKief 4.4.0
material-palenight-theme whizkydee 2.0.1
material-theme zhuangtongfa 3.9.11
monokai-operator-theme markfknight 4.0.0
night-owl sdras 2.0.0
nord-operator-theme Chad 1.0.0
one-monokai azemoh 0.5.0
one-monokai-italics iamkd 0.4.0
operatormonodarktheme Valiantsin 1.0.1
snazzy-operator-plus bsides 1.2.1
theme-dracula dracula-theme 2.22.3
tomorrow-and-tomorrow-night-operator-mono-theme chiragpat 0.0.6
tomorrow-and-tomorrow-night-operator-mono-theme-tweaked stonebuddha 0.1.1
twilight-operator stevemcgrath 0.0.1
unity-debug Unity 3.0.2
vim vscodevim 1.17.1
vsc-community-material-theme Equinusocio 1.4.2
vsc-material-theme-icons equinusocio 1.2.0
vscode-great-icons emmanuelbeziat 2.1.61
vscode-simple-icons LaurentTreguier 1.13.5
vscode-theme-onedark akamud 2.2.2
winteriscoming johnpapa 1.4.3

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Comments:6 (3 by maintainers)

github_iconTop GitHub Comments

1reaction
mrcommented, Nov 26, 2020

Oh after also regenerating files it looks like it figured everything out! Thanks!

1reaction
filipwcommented, Nov 26, 2020

For Mono-based development (e.g. Unity) that requires full .NET framework, you need to set "omnisharp.useGlobalMono": "always" in VS Code settings.

This is mentioned in the known issues in release notes - https://github.com/OmniSharp/omnisharp-vscode/blob/8f7b3d21b5cdb04d6cf725302503d91099d95164/CHANGELOG.md#known-issues-in-1236

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