On an online course I tasked with an exercise, it was the pretty simple exercise, but I have made it difficult to complete…

1. I have created GitHub repository, with Readme.md file and nothing more: https://github.com/frostysh/EXERCISE03_YPARKHOMENKO_CSHARPPRO_HILLEL.git
2. The I have cloned my remote repository to local machine, and created a new branch in which I wanted to do all work, and then merge it into a main branch on remote repository via Pull-Request.

On local machine I created some files “Program.cs”, “User.cs”, and so on. And I have discovered that my automatic syntax error checks is no works. More than that, project refuses to build… So I copypasted and modified files from some other projects to this project starts to work properly.

• project.assets.json file from /obj/ in the root directory (I created obj-drectory too)

    {
      "version": 3,
      "targets": {
        "net8.0": {}
      },
      "libraries": {},
      "projectFileDependencyGroups": {
        "net8.0": []
      },
      "packageFolders": {
        "C:\Users\F021\.nuget\packages\": {}
      },
      "project": {
        "version": "1.0.0",
        "restore": {
          "projectUniqueName": "C:\Users\F021\source\repos\HILLEL_PRIVATE_SCHOOL_CSHARPRO_EXERCISE03_CONSOLE_PROGRAM_WITH_OBJECTS\EXERCISE03_YPARKHOMENKO_CSHARPPRO_HILLEL.csproj",
          "projectName": "HILLEL_PRIVATE_SCHOOL_CSHARPPRO_EXERCISE03_CONSOLE_PROGRAM_WITH_OBJECTS",
          "projectPath": "C:\Users\F021\source\repos\HILLEL_PRIVATE_SCHOOL_CSHARPRO_EXERCISE03_CONSOLE_PROGRAM_WITH_OBJECTS\EXERCISE03_YPARKHOMENKO_CSHARPPRO_HILLEL.csproj",
          "packagesPath": "C:\Users\F021\.nuget\packages\",
          "outputPath": "C:\Users\F021\source\repos\HILLEL_PRIVATE_SCHOOL_CSHARPRO_EXERCISE03_CONSOLE_PROGRAM_WITH_OBJECTS\obj\",
          "projectStyle": "PackageReference",
          "configFilePaths": [
            "C:\Users\F021\AppData\Roaming\NuGet\NuGet.Config",
            "C:\Program Files (x86)\NuGet\Config\Microsoft.VisualStudio.Offline.config"
          ],
          "originalTargetFrameworks": [
            "net8.0"
          ],
          "sources": {
            "C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\": {},
            "https://api.nuget.org/v3/index.json": {}
          },
          "frameworks": {
            "net8.0": {
              "targetAlias": "net8.0",
              "projectReferences": {}
            }
          },
          "warningProperties": {
            "warnAsError": [
              "NU1605"
            ]
          },
          "restoreAuditProperties": {
            "enableAudit": "true",
            "auditLevel": "low",
            "auditMode": "direct"
          }
        },
        "frameworks": {
          "net8.0": {
            "targetAlias": "net8.0",
            "imports": [
              "net461",
              "net462",
              "net47",
              "net471",
              "net472",
              "net48",
              "net481"
            ],
            "assetTargetFallback": true,
            "warn": true,
            "frameworkReferences": {
              "Microsoft.NETCore.App": {
                "privateAssets": "all"
              }
            },
            "runtimeIdentifierGraphPath": "C:\Program Files\dotnet\sdk\8.0.204/PortableRuntimeIdentifierGraph.json"
          }
        }
      }
    }

• I created *.csproj file manually too.

    <Project Sdk="Microsoft.NET.Sdk">
    
        <PropertyGroup>
            <OutputType>Exe</OutputType>
            <TargetFramework>net8.0</TargetFramework>
            <ImplicitUsings>enable</ImplicitUsings>
            <Nullable>enable</Nullable>
        </PropertyGroup>
    
    </Project>

• I also created *.sln file with help of console program dotnet new sln –name MySlnName

    Microsoft Visual Studio Solution File, Format Version 12.00
    # Visual Studio Version 17
    VisualStudioVersion = 17.0.31903.59
    MinimumVisualStudioVersion = 10.0.40219.1
    Global
        GlobalSection(SolutionConfigurationPlatforms) = preSolution
            Debug|Any CPU = Debug|Any CPU
            Release|Any CPU = Release|Any CPU
        EndGlobalSection
        GlobalSection(SolutionProperties) = preSolution
            HideSolutionNode = FALSE
        EndGlobalSection
    EndGlobal

• My project’s root directory looks like that:
  RootFolder

But the project only works in this mode – *.csproject selected in debug menu (screenshot from MSV Studio): StartWithoutDebug *.csproj

And the project does not work in this mode – *.sln selected in debug menu: StartWithoutDebugging *.sln

I think if I will finish the work, and a teacher will clone my remote repository and try to build and launch the project, it will not work. HOW to fix it?
Thank to all for the future answers.