OmniSharp.MSBuild.ProjectManager 无法在 Linux 上加载项目答案

【问题标题】：OmniSharp.MSBuild.ProjectManager Failed to load project on LinuxOmniSharp.MSBuild.ProjectManager 无法在 Linux 上加载项目
【发布时间】：2020-03-28 03:33:23
【问题描述】：

我正在 Manjaro Linux Notebook 上学习 C#。我尝试安装 ms-vscode.csharp 扩展，但在打开任何 .NET Core 项目时，我收到以下错误消息：

某些项目无法加载。请查看输出以获取更多信息信息。

我尝试将 VS Code 设置中的"omnisharp.path" 选项设置为"latest"，但没有任何改变。

我使用的是 1.21.8 版的扩展和 1.40.2 版的 VS Code。

有什么办法解决这个问题吗？

VS 代码错误日志：

Starting OmniSharp server at 12/3/2019, 1:16:18 PM
    Target: /home/marco/dev/big-number

OmniSharp server started.
    Path: /home/marco/.vscode/extensions/ms-vscode.csharp-1.21.8/.omnisharp/1.34.8/run
    PID: 9119

[info]: OmniSharp.Stdio.Host
        Starting OmniSharp on manjaro 0.0 (x64)
[info]: OmniSharp.Services.DotNetCliService
        DotNetPath set to dotnet
[info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
        Located 1 MSBuild instance(s)
            1: StandAlone 16.3 - "/home/marco/.vscode/extensions/ms-vscode.csharp-1.21.8/.omnisharp/1.34.8/omnisharp/.msbuild/Current/Bin"
[info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
        MSBUILD_EXE_PATH environment variable set to '/home/marco/.vscode/extensions/ms-vscode.csharp-1.21.8/.omnisharp/1.34.8/omnisharp/.msbuild/Current/Bin/MSBuild.dll'
[info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
        Registered MSBuild instance: StandAlone 16.3 - "/home/marco/.vscode/extensions/ms-vscode.csharp-1.21.8/.omnisharp/1.34.8/omnisharp/.msbuild/Current/Bin"
            CscToolExe = csc.exe
            MSBuildToolsPath = /home/marco/.vscode/extensions/ms-vscode.csharp-1.21.8/.omnisharp/1.34.8/omnisharp/.msbuild/Current/Bin
            CscToolPath = /home/marco/.vscode/extensions/ms-vscode.csharp-1.21.8/.omnisharp/1.34.8/omnisharp/.msbuild/Current/Bin/Roslyn
            BypassFrameworkInstallChecks = true
            MSBuildExtensionsPath = /home/marco/.vscode/extensions/ms-vscode.csharp-1.21.8/.omnisharp/1.34.8/omnisharp/.msbuild
[info]: OmniSharp.Cake.CakeProjectSystem
        Detecting Cake files in '/home/marco/dev/big-number'.
[info]: OmniSharp.Cake.CakeProjectSystem
        Could not find any Cake files
[info]: OmniSharp.MSBuild.ProjectSystem
        No solution files found in '/home/marco/dev/big-number'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/home/marco/dev/big-number/big-number.csproj'
[info]: OmniSharp.Script.ScriptProjectSystem
        Detecting CSX files in '/home/marco/dev/big-number'.
[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.MSBuild.ProjectManager
        Loading project: /home/marco/dev/big-number/big-number.csproj
[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.EditorConfigWorkspaceOptionsProvider, Order: 200
[info]: OmniSharp.WorkspaceInitializer
        Configuration finished.
[info]: OmniSharp.Stdio.Host
        Omnisharp server running using Stdio at location '/home/marco/dev/big-number' on host 9016.
  It was not possible to find any installed .NET Core SDKs
  Did you mean to run .NET Core SDK commands? Install a .NET Core SDK from:
      https://aka.ms/dotnet-download
[warn]: OmniSharp.MSBuild.ProjectManager
        Failed to load project file '/home/marco/dev/big-number/big-number.csproj'.
/home/marco/dev/big-number/big-number.csproj(1,1)
Microsoft.Build.Exceptions.InvalidProjectFileException: The SDK 'Microsoft.NET.Sdk' specified could not be found.  /home/marco/dev/big-number/big-number.csproj
  at Microsoft.Build.Shared.ProjectErrorUtilities.ThrowInvalidProject (System.String errorSubCategoryResourceName, Microsoft.Build.Shared.IElementLocation elementLocation, System.String resourceName, System.Object[] args) [0x00040] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Shared.ProjectErrorUtilities.VerifyThrowInvalidProject[T1] (System.Boolean condition, System.String errorSubCategoryResourceName, Microsoft.Build.Shared.IElementLocation elementLocation, System.String resourceName, T1 arg0) [0x00003] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Shared.ProjectErrorUtilities.ThrowInvalidProject[T1] (Microsoft.Build.Shared.IElementLocation elementLocation, System.String resourceName, T1 arg0) [0x00000] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Evaluator`4[P,I,M,D].ExpandAndLoadImportsFromUnescapedImportExpressionConditioned (System.String directoryOfImportingFile, Microsoft.Build.Construction.ProjectImportElement importElement, System.Collections.Generic.List`1[Microsoft.Build.Construction.ProjectRootElement]& projects, Microsoft.Build.BackEnd.SdkResolution.SdkResult& sdkResult, System.Boolean throwOnFileNotExistsError) [0x00254] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Evaluator`4[P,I,M,D].ExpandAndLoadImports (System.String directoryOfImportingFile, Microsoft.Build.Construction.ProjectImportElement importElement, Microsoft.Build.BackEnd.SdkResolution.SdkResult& sdkResult) [0x00027] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Evaluator`4[P,I,M,D].EvaluateImportElement (System.String directoryOfImportingFile, Microsoft.Build.Construction.ProjectImportElement importElement) [0x0000d] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Evaluator`4[P,I,M,D].PerformDepthFirstPass (Microsoft.Build.Construction.ProjectRootElement currentProjectOrImport) [0x000e6] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Evaluator`4[P,I,M,D].Evaluate (Microsoft.Build.BackEnd.Logging.ILoggingService loggingService, Microsoft.Build.Framework.BuildEventContext buildEventContext) [0x0011c] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Evaluator`4[P,I,M,D].Evaluate (Microsoft.Build.Evaluation.IEvaluatorData`4[P,I,M,D] data, Microsoft.Build.Construction.ProjectRootElement root, Microsoft.Build.Evaluation.ProjectLoadSettings loadSettings, System.Int32 maxNodeCount, Microsoft.Build.Collections.PropertyDictionary`1[T] environmentProperties, Microsoft.Build.BackEnd.Logging.ILoggingService loggingService, Microsoft.Build.Evaluation.IItemFactory`2[S,T] itemFactory, Microsoft.Build.Evaluation.IToolsetProvider toolsetProvider, Microsoft.Build.Evaluation.ProjectRootElementCache projectRootElementCache, Microsoft.Build.Framework.BuildEventContext buildEventContext, Microsoft.Build.BackEnd.SdkResolution.ISdkResolverService sdkResolverService, System.Int32 submissionId, Microsoft.Build.Evaluation.Context.EvaluationContext evaluationContext, System.Boolean interactive) [0x0002f] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project.Reevaluate (Microsoft.Build.BackEnd.Logging.ILoggingService loggingServiceForEvaluation, Microsoft.Build.Evaluation.ProjectLoadSettings loadSettings, Microsoft.Build.Evaluation.Context.EvaluationContext evaluationContext) [0x0005e] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project.ReevaluateIfNecessary (Microsoft.Build.BackEnd.Logging.ILoggingService loggingServiceForEvaluation, Microsoft.Build.Evaluation.ProjectLoadSettings loadSettings, Microsoft.Build.Evaluation.Context.EvaluationContext evaluationContext) [0x00035] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project.ReevaluateIfNecessary (Microsoft.Build.BackEnd.Logging.ILoggingService loggingServiceForEvaluation, Microsoft.Build.Evaluation.Context.EvaluationContext evaluationContext) [0x00000] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project.ReevaluateIfNecessary (Microsoft.Build.Evaluation.Context.EvaluationContext evaluationContext) [0x00007] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project.Initialize (System.Collections.Generic.IDictionary`2[TKey,TValue] globalProperties, System.String toolsVersion, System.String subToolsetVersion, Microsoft.Build.Evaluation.ProjectLoadSettings loadSettings, Microsoft.Build.Evaluation.Context.EvaluationContext evaluationContext) [0x00126] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project..ctor (System.String projectFile, System.Collections.Generic.IDictionary`2[TKey,TValue] globalProperties, System.String toolsVersion, System.String subToolsetVersion, Microsoft.Build.Evaluation.ProjectCollection projectCollection, Microsoft.Build.Evaluation.ProjectLoadSettings loadSettings, Microsoft.Build.Evaluation.Context.EvaluationContext evaluationContext) [0x00093] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project..ctor (System.String projectFile, System.Collections.Generic.IDictionary`2[TKey,TValue] globalProperties, System.String toolsVersion, System.String subToolsetVersion, Microsoft.Build.Evaluation.ProjectCollection projectCollection, Microsoft.Build.Evaluation.ProjectLoadSettings loadSettings) [0x00000] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project..ctor (System.String projectFile, System.Collections.Generic.IDictionary`2[TKey,TValue] globalProperties, System.String toolsVersion, Microsoft.Build.Evaluation.ProjectCollection projectCollection, Microsoft.Build.Evaluation.ProjectLoadSettings loadSettings) [0x00000] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.Project..ctor (System.String projectFile, System.Collections.Generic.IDictionary`2[TKey,TValue] globalProperties, System.String toolsVersion, Microsoft.Build.Evaluation.ProjectCollection projectCollection) [0x00000] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.ProjectCollection.LoadProject (System.String fileName, System.Collections.Generic.IDictionary`2[TKey,TValue] globalProperties, System.String toolsVersion) [0x000f7] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at Microsoft.Build.Evaluation.ProjectCollection.LoadProject (System.String fileName, System.String toolsVersion) [0x00000] in <b695b16788dd418cbe8b4d98f7a92ff3>:0 
  at OmniSharp.MSBuild.ProjectLoader.EvaluateProjectFileCore (System.String filePath) [0x0003f] in <d71b11425cc74bd5a2cb9780240c3208>:0 
  at OmniSharp.MSBuild.ProjectLoader.BuildProject (System.String filePath) [0x0000d] in <d71b11425cc74bd5a2cb9780240c3208>:0 
  at OmniSharp.MSBuild.ProjectFile.ProjectFileInfo.Load (System.String filePath, OmniSharp.MSBuild.ProjectIdInfo projectIdInfo, OmniSharp.MSBuild.ProjectLoader loader) [0x00015] in <d71b11425cc74bd5a2cb9780240c3208>:0 
  at OmniSharp.MSBuild.ProjectManager+<>c__DisplayClass29_0.<LoadProject>b__0 () [0x00000] in <d71b11425cc74bd5a2cb9780240c3208>:0 
  at (wrapper delegate-invoke) System.Func`1[System.ValueTuple`3[OmniSharp.MSBuild.ProjectFile.ProjectFileInfo,System.Collections.Immutable.ImmutableArray`1[OmniSharp.MSBuild.Logging.MSBuildDiagnostic],OmniSharp.MSBuild.Notification.ProjectLoadedEventArgs]].invoke_TResult()
  at OmniSharp.MSBuild.ProjectManager.LoadOrReloadProject (System.String projectFilePath, System.Func`1[TResult] loader) [0x0001b] in <d71b11425cc74bd5a2cb9780240c3208>:0 

[fail]: OmniSharp.MSBuild.ProjectManager
        Attempted to update project that is not loaded: /home/marco/dev/big-number/big-number.csproj

【问题讨论】：

标签： linux .net-core visual-studio-code manjaro omnisharp

【解决方案1】：

我通过添加具有以下内容的omnisharp.json 文件解决了这个问题：

{
    "MSBuild": {
        "UseLegacySdkResolver": true
    }
}

Source

【讨论】：

在哪里可以找到omnisharp.json文件？
请不要提供引发其他问题的解决方案
@mamenaware 我在这里没有看到其他问题。如果文件不存在，则需要创建它...
我应该在哪里添加这个文件？ omnisharp.json
这是一个 OmniSharp 的配置文件，所以你只需将它添加到你的项目根目录中。

【解决方案2】：

您收到此错误的部分原因是，您的项目中缺少 .vscode。 Omnisharp 查找 .Net SDK 版本的路径错误，这是因为 Omnisharp 在 Visual Studio 保存其资源的路径中查找所需的 SDK。要解决此问题，请更新您的 Visual Studio，使其具有您正在使用的最新 SDK 版本。这应该可以解决错误，并且您在 Visual Studio 代码上运行的项目将具有 .VSCode 文件夹。

要更新 Visual Studio，打开 Visual Studio 并在顶部菜单中选择帮助，查找“检查更新”，然后更新。

如果你已经完成了这一切，那么简单的 Vs Code 重启可能就是答案。

【讨论】：

【解决方案3】：

这似乎为我做到了代码->首选项->设置->点击这里

;/希望我至少有 10 个声望可以在此处发布图片，但它是右上角的第一个图标，看起来像一张纸。

那么..

将 Pasta 复制到 settings.json 中

{
  "explorer.compactFolders": false,
  "update.mode": "none",
  "workbench.iconTheme": "vscode-icons",
  "editor.formatOnSave": true,
  "editor.defaultFormatter": "esbenp.prettier-vscode",
  "omnisharp.path": "latest",
  "omnisharp.monoPath": "auto",
  "csharp.semanticHighlighting.enabled": true,
  "editor.formatOnType": true,
  "[csharp]": {
    "editor.defaultFormatter": "ms-dotnettools.csharp"
  },
  "[xml]": {
    "editor.defaultFormatter": "DotJoshJohnson.xml"
  },

  "settingsSync.ignoredExtensions": [],
  "window.zoomLevel": 0
}

那个^

"[csharp]": {
    "editor.defaultFormatter": "ms-dotnettools.csharp"
  },
  "[xml]": {
    "editor.defaultFormatter": "DotJoshJohnson.xml"
  },

但我认为这就是我的诀窍 ^ 特别是 [csharp]

【讨论】：

【解决方案4】：

通过查看启动日志，我看到一条消息说我需要 .NET Developer Pack 4.7.1。

从https://docs.microsoft.com/de-de/dotnet/framework/install/guide-for-developers 下载和安装 .NET Framework 4.7.1（开发包）为我解决了这个问题。

【讨论】：