OmniSharp failing to update project that is not loaded

[oblaydes]

Issue Description

When starting up vscode it gives a warning that "Some projects have trouble loading. Please review the output for more details." (details in OmniSharp log)

Steps to Reproduce

I really dont know. Everyone here has a solution to how to do this but I'm a noob when it comes to coding and GitHub. I'm just following the steps of an online beginners class and the C# extension is causing a problem that I don't know how to fix

Expected Behavior

vscode to load and update projects correctly

Actual Behavior

Its giving me a fail that it has "Attemped to update project that is not loaded"

Logs

OmniSharp log

Starting OmniSharp server at 11/12/2021, 3:20:53 PM
Target: d:\Project Storage\Water Car\Water Car.sln

OmniSharp server started.
Path: c:\Users\oblay.vscode\extensions\ms-dotnettools.csharp-1.23.16.omnisharp\1.37.16\OmniSharp.exe
PID: 16264

Starting OmniSharp on Windows 6.2.9200.0 (x64)
info: OmniSharp.Services.DotNetCliService
Checking the 'DOTNET_ROOT' environment variable to find a .NET SDK
info: OmniSharp.Services.DotNetCliService
Using the 'dotnet' on the PATH.
info: OmniSharp.Services.DotNetCliService
DotNetPath set to dotnet
info: OmniSharp.MSBuild.Discovery.MSBuildLocator
Located 1 MSBuild instance(s)
1: StandAlone 17.0.0 - "c:\Users\oblay.vscode\extensions\ms-dotnettools.csharp-1.23.16.omnisharp\1.37.16.msbuild\Current\Bin"
info: OmniSharp.MSBuild.Discovery.MSBuildLocator
MSBUILD_EXE_PATH environment variable set to 'c:\Users\oblay.vscode\extensions\ms-dotnettools.csharp-1.23.16.omnisharp\1.37.16.msbuild\Current\Bin\MSBuild.exe'
info: OmniSharp.MSBuild.Discovery.MSBuildLocator
Registered MSBuild instance: StandAlone 17.0.0 - "c:\Users\oblay.vscode\extensions\ms-dotnettools.csharp-1.23.16.omnisharp\1.37.16.msbuild\Current\Bin"
CscToolExe = csc.exe
CscToolPath = c:\Users\oblay.vscode\extensions\ms-dotnettools.csharp-1.23.16.omnisharp\1.37.16.msbuild\Current\Bin\Roslyn
MSBuildExtensionsPath = c:\Users\oblay.vscode\extensions\ms-dotnettools.csharp-1.23.16.omnisharp\1.37.16.msbuild
MSBuildToolsPath = c:\Users\oblay.vscode\extensions\ms-dotnettools.csharp-1.23.16.omnisharp\1.37.16.msbuild\Current\Bin
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.Completion.CompletionOptionsProvider, 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.BlockStructureWorkspaceOptionsProvider, Order: 140
info: OmniSharp.Cake.CakeProjectSystem
Detecting Cake files in 'd:\Project Storage\Water Car'.
info: OmniSharp.Cake.CakeProjectSystem
Could not find any Cake files
info: OmniSharp.MSBuild.ProjectSystem
Detecting projects in 'd:\Project Storage\Water Car\Water Car.sln'.
info: OmniSharp.MSBuild.ProjectManager
Queue project update for 'd:\Project Storage\Water Car\Assembly-CSharp.csproj'
info: OmniSharp.Script.ScriptProjectSystem
Detecting CSX files in 'd:\Project Storage\Water Car'.
info: OmniSharp.Script.ScriptProjectSystem
Could not find any CSX files
info: OmniSharp.WorkspaceInitializer
Configuration finished.
info: OmniSharp.Stdio.Host
Omnisharp server running using Stdio at location 'd:\Project Storage\Water Car' on host 15736.
info: OmniSharp.MSBuild.ProjectManager
Loading project: d:\Project Storage\Water Car\Assembly-CSharp.csproj
fail: OmniSharp.MSBuild.ProjectLoader
The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks
[warn]: OmniSharp.MSBuild.ProjectManager
Failed to load project file 'd:\Project Storage\Water Car\Assembly-CSharp.csproj'.
d:\Project Storage\Water Car\Assembly-CSharp.csproj
c:\Users\oblay.vscode\extensions\ms-dotnettools.csharp-1.23.16.omnisharp\1.37.16.msbuild\Current\Bin\Microsoft.Common.CurrentVersion.targets(1217,5): Error: The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks

Attempted to update project that is not loaded: d:\Project Storage\Water Car\Assembly-CSharp.csproj

C# log

N/A (happens on startup)

Environment information

VSCode version: 1.62.2
C# Extension: 1.23.16

Dotnet Information

.NET SDK (reflecting any global.json): Version: 5.0.403 Commit: bf9d168ac2

Runtime Environment:
OS Name: Windows
OS Version: 10.0.19042
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\5.0.403\

Host (useful for support):
Version: 5.0.12
Commit: 7211aa01b3

.NET SDKs installed:
5.0.403 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

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

Visual Studio Code Extensions

Extension	Author	Version
csharp	ms-dotnettools	1.23.16
unity-code-snippets	kleber-swf	1.3.0

[JoeRobich]

@oblaydes From the OmniSharp log I can see you are missing the .NET 4.7.1 developer pack installed which is what Unity uses for their projects. You can download the pack from https://dotnet.microsoft.com/download/dotnet-framework/thank-you/net471-developer-pack-offline-installer