Unable to build using Visual Studio 2022

[Entersjkhdfkjdhfksjf]

Have you checked Github Issues for similar errors?
yes
Exception
Post the exception returned by Visual Studio

Visual Studio Output Logs
Build started at 20:21...
1>------ Build started: Project: CosmosKernel2, Configuration: Debug Any CPU ------
Failed to restore C:\Users[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj (in 1.29 sec).
NuGet package restore failed. Please see Error List window for detailed warnings and errors.
1>C:\Users[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1101: Unable to find package Cosmos.Debug.Kernel. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages, nuget.org, Package source
1>C:\Users[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1101: Unable to find package Cosmos.Plugs. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages, nuget.org, Package source
1>C:\Users[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1101: Unable to find package Cosmos.System2. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages, nuget.org, Package source
1>C:\Users[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1101: Unable to find package Cosmos.Build. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages, nuget.org, Package source
1>Done building project "CosmosKernel2.csproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
========== Build completed at 20:21 and took 02.147 seconds ==========

How To Reproduce
Describe any changes done to a clean kernel for this error to occur.
No changes were made. Just build the example kernel

Screenshots
If applicable, add screenshots to help explain your problem.

Context
Before posting please confirm that the following are in order
[ ] Both Cosmos VS Extensions are installed
[ ] In the NuGet Package Manager "Include prerelease" is selected
[ ] The Cosmos NuGet package store is selected (NOT nuget.org) in 'Manage NuGet Packages'
[ ] The Cosmos NuGet packages are installed

Add any other context about the problem which might be helpful.

[Entersjkhdfkjdhfksjf]

Also I am not sure how to confirm last three lines in context

[Schaapie-D2]

Do you have the Cosmos NuGet packages installed?

[Schaapie-D2]

Also I am not sure how to confirm last three lines in context

You can confirm these by right clicking on your project. And then clicking on "Manage NuGet Packages..."

[Entersjkhdfkjdhfksjf]

Also I am not sure how to confirm last three lines in context

You can confirm these by right clicking on your project. And then clicking on "Manage NuGet Packages..."

It seems to be installed

[Schaapie-D2]

Do you have the Cosmos VS Extension installed?

[Entersjkhdfkjdhfksjf]

Do you have the Cosmos VS Extension installed?

yes

[Schaapie-D2]

hmm... maybe reinstall the packages?

And look if Project > Dependencies > Packages looks like this:

[Entersjkhdfkjdhfksjf]

hmm... maybe reinstall the packages?

And look if Project > Dependencies > Packages looks like this:

no, It looks like this

[Schaapie-D2]

can i see the project file (double click on your project)

EDIT:
And do you use dev or user kit?

[Entersjkhdfkjdhfksjf]

can i see the project file (double click on your project)

EDIT: And do you use dev or user kit?

I have tried both the kits.
Also here is the project file

<Project Sdk="Microsoft.NET.Sdk">

    <PropertyGroup>
        <TargetFramework>net6.0</TargetFramework>
        <!--<RuntimeIdentifier>cosmos</RuntimeIdentifier>-->
        <Platform>cosmos</Platform>
        <SupportsX86Intrinsics>false</SupportsX86Intrinsics>
        <SelfContained>True</SelfContained>
    </PropertyGroup>

    <PropertyGroup>
        <EnableGDB>False</EnableGDB>
        <StartCosmosGDB>False</StartCosmosGDB>
        <VisualStudioDebugPort>Pipe: Cosmos\Serial</VisualStudioDebugPort>
        <CosmosDebugPort>Serial: COM1</CosmosDebugPort>
        <Launch>VMware</Launch>
        <Profile>VMware</Profile>
        <Description>Use VMware Player or Workstation to deploy and debug.</Description>
        <PxeInterface>192.168.0.8</PxeInterface>
    </PropertyGroup>

    <ItemGroup>
        <PackageReference Include="Cosmos.Build" Version="0-*" NoWarn="NU1604" />
        <PackageReference Include="Cosmos.Debug.Kernel" Version="0-*" NoWarn="NU1604" />
        <PackageReference Include="Cosmos.System2" Version="0-*" NoWarn="NU1604" />
        <PackageReference Include="Cosmos.Plugs" Version="0-*" NoWarn="NU1604" />
    </ItemGroup>

</Project>

[Schaapie-D2]

if you are using the latest dev kit, try putting this in <itemGroup>

<PackageReference Include="Cosmos.Build" Version="0.1.0-localbuild20240722114813" NoWarn="NU1604">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Cosmos.Plugs" Version="0-*" NoWarn="NU1604" />
<PackageReference Include="Cosmos.Common" Version="0.1.0-localbuild20240722114820" />
<PackageReference Include="Cosmos.Core" Version="0.1.0-localbuild20240722114820" />
<PackageReference Include="Cosmos.Debug.Kernel" Version="0.1.0-localbuild20240722114820" NoWarn="NU1604" />
<PackageReference Include="Cosmos.HAL2" Version="0.1.0-localbuild20240722114820" />
<PackageReference Include="Cosmos.System2" Version="0.1.0-localbuild20240722114820" />
<PackageReference Include="IL2CPU.API" Version="0.1.0-localbuild20240722114820" />
<PackageReference Include="System.Console" Version="4.3.1" />

And if you are using user kit. Try installing dev kit because user kit is very outdated.

[Entersjkhdfkjdhfksjf]

now, i am getting the following errors. (Yes, I reinstalled the dev kit)

Build started at 17:48...
1>------ Build started: Project: CosmosKernel2, Configuration: Debug Any CPU ------
Failed to restore C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj (in 5 ms).
NuGet package restore failed. Please see Error List window for detailed warnings and errors.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : warning NU1504: Duplicate 'PackageReference' items found. Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior. The duplicate 'PackageReference' items are: Cosmos.Build 0-*, Cosmos.Build 0.1.0-localbuild20240722114813; Cosmos.Debug.Kernel 0-*, Cosmos.Debug.Kernel 0.1.0-localbuild20240722114820; Cosmos.System2 0-*, Cosmos.System2 0.1.0-localbuild20240722114820; Cosmos.Plugs 0-*, Cosmos.Plugs 0-*.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'Cosmos.Common (>= 0.1.0-localbuild20240722114820)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'System.Console (>= 4.3.1)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'Cosmos.Debug.Kernel (>= 0.0.0)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'IL2CPU.API (>= 0.1.0-localbuild20240722114820)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'Cosmos.Plugs (>= 0.0.0)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'Cosmos.HAL2 (>= 0.1.0-localbuild20240722114820)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'Cosmos.Core (>= 0.1.0-localbuild20240722114820)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'Cosmos.System2 (>= 0.0.0)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>C:\Users\[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : error NU1100: Unable to resolve 'Cosmos.Build (>= 0.0.0)' for 'net6.0'. PackageSourceMapping is enabled, the following source(s) were not considered: Microsoft Visual Studio Offline Packages, nuget.org, Package source.
1>Done building project "CosmosKernel2.csproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
========== Build completed at 17:48 and took 01.184 seconds ==========

[Schaapie-D2]

hmm... The only thing I can think of is to restore the NuGet packages,
because it seems that its an issue with Nuget. Not Cosmos.

This will help: https://github.com/NuGet/docs.microsoft.com-nuget/blob/main/docs/consume-packages/Package-Restore.md

TIP: remove the previous NuGet references in <itemGroup> to avoid duplicates that's what this warning was saying

1>C:\Users[username]\source\repos\CosmosKernel2\CosmosKernel2\CosmosKernel2.csproj : warning NU1504: Duplicate 'PackageReference' items found. Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior. The duplicate 'PackageReference' items are: Cosmos.Build 0-, Cosmos.Build 0.1.0-localbuild20240722114813; Cosmos.Debug.Kernel 0-, Cosmos.Debug.Kernel 0.1.0-localbuild20240722114820; Cosmos.System2 0-, Cosmos.System2 0.1.0-localbuild20240722114820; Cosmos.Plugs 0-, Cosmos.Plugs 0-*.