build.cmd /t:Pin, build.cmd /t:Restore and build.cmd all not work

[heku]

Hi,
I'm not quite sure if here is the correct place to put my question, I have a problem to build any of .net core projects (DI, Configuration, Hosting etc).

Error	KRB1001	Package references have not been pinned. 
Run './build.cmd /t:Pin'. 
Also, you can run './build.cmd /t:Restore' which will pin *and* restore packages.

The suggest commands build.cmd /t:Pin, build.cmd /t:Restore and build.cmd all not work, same error below.

PS C:\Codes\Configuration> .\build.cmd
Downloading KoreBuild 2.1.0-preview1-15493
Using KoreBuild 2.1.0-preview1-15493
WARNING: dotnet found on the system PATH is 'C:\Program Files\dotnet\dotnet.exe' but KoreBuild will use
'C:\Users\heku\.dotnet\x64\dotnet.exe'.
WARNING: Adding 'C:\Users\heku\.dotnet\x64' to system PATH permanently may be required for applications like Visual
Studio or VS Code to work correctly.
Adding C:\Users\heku\.dotnet\x64 to PATH
.NET Core runtime 2.0.0 is already installed. Skipping installation.
dotnet-install: Downloading link: https://dotnetcli.azureedge.net/dotnet/Sdk/2.1.0-preview1-007042/dotnet-sdk-2.1.0-preview1-007042-win-x64.zip
dotnet-install: Extracting zip from https://dotnetcli.azureedge.net/dotnet/Sdk/2.1.0-preview1-007042/dotnet-sdk-2.1.0-preview1-007042-win-x64.zip
dotnet-install: Adding to current process PATH: "C:\Users\heku\.dotnet\x64\". Note: This change will not be visible if PowerShell was run as a child process.
dotnet-install: Installation finished
>>> dotnet.exe msbuild @C:\Codes\Configuration\artifacts\msbuild\msbuild.rsp
Invoke-RepositoryBuild : Program 'dotnet.exe' failed to run: The specified executable is not a valid application for th
is OS platform.At C:\Users\heku\.dotnet\buildtools\korebuild\2.1.0-preview1-15493\scripts\common.psm1:7 char:5
+     & $cmd @args
+     ~~~~~~~~~~~~.
At C:\Codes\Configuration\build.ps1:173 char:5
+     Invoke-RepositoryBuild $Path @MSBuildArgs
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (:) [Invoke-RepositoryBuild], ApplicationFailedException
    + FullyQualifiedErrorId : NativeCommandFailed,Invoke-RepositoryBuild

It seems it downloads a x64 version dotnet CLI to my x86 OS, is this a bug?

Here is my environment info:

Visual Studio Community 15.3 (the latest version)
.netcore 2.0 SDK installed.

C:\Users\heku>dotnet --info
.NET Command Line Tools (2.0.0)

Product Information:
 Version:            2.0.0
 Commit SHA-1 hash:  cdcd1928c9

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.15063
 OS Platform: Windows
 RID:         win10-x86
 Base Path:   C:\Program Files\dotnet\sdk\2.0.0\

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.0
  Build    : e8b8861ac7faf042c87a5c2f9f2d04c98b69f28d

Any suggestion will be appreciated.

[heku]

@natemcmaster gives a solution, anyone has similar problem please refer to aspnet/DependencyInjection#579