Extension installation fails on VS 2017 #285

I tried to install the last version on VS 2K17 community on windows 7 x64 but fail during extension installation
the following is install log

10/06/2017 22:20:59 - Microsoft VSIX Installer
10/06/2017 22:20:59 - -------------------------------------------
10/06/2017 22:20:59 - vsixinstaller.exe version:
10/06/2017 22:20:59 - 15.0.26209.1 built by: D15REL
10/06/2017 22:20:59 - -------------------------------------------
10/06/2017 22:20:59 - Command line parameters:
10/06/2017 22:20:59 - C:\Program Files (x86)\Microsoft Visual Studio\Installer\resources\app\ServiceHub\Services\Microsoft.VisualStudio.Setup.Service\VSIXInstaller.exe,/admin,/logFile:C:\Users\najib\AppData\Local\Temp\Visual_Rust_for_Visual_Studio_2017_20170610222050_002_VSIXBootstrapper.log,C:\ProgramData\Package Cache\9864EE5369359DB622D0234B6C6B7640B949140C\VisualRust.vsix
10/06/2017 22:20:59 - -------------------------------------------
10/06/2017 22:20:59 - Microsoft VSIX Installer
10/06/2017 22:20:59 - -------------------------------------------
10/06/2017 22:21:00 - Initializing Install...
10/06/2017 22:21:02 - Extension Details...
10/06/2017 22:21:02 - Identifier : 40c1d2b5-528b-4966-a7b1-1974e3568abe
10/06/2017 22:21:02 - Name : Visual Rust
10/06/2017 22:21:02 - Author : The Piston Project
10/06/2017 22:21:02 - Version : 0.2.0
10/06/2017 22:21:02 - Description : Visual Studio integration for the Rust programming language (http://www.rust-lang.org/)
10/06/2017 22:21:02 - Locale : en-US
10/06/2017 22:21:02 - MoreInfoURL :
10/06/2017 22:21:02 - InstalledByMSI : False
10/06/2017 22:21:02 - SupportedFrameworkVersionRange : [4.6,)
10/06/2017 22:21:02 -
10/06/2017 22:21:02 - SignatureState : Unsigned
10/06/2017 22:21:02 - Supported Products :
10/06/2017 22:21:02 - Microsoft.VisualStudio.Community
10/06/2017 22:21:02 - Version : [15.0,)
10/06/2017 22:21:02 - Microsoft.VisualStudio.Pro
10/06/2017 22:21:02 - Version : [15.0,)
10/06/2017 22:21:02 - Microsoft.VisualStudio.Enterprise
10/06/2017 22:21:02 - Version : [15.0,)
10/06/2017 22:21:02 -
10/06/2017 22:21:02 - References :
10/06/2017 22:21:02 - Prerequisites :
10/06/2017 22:21:02 - -------------------------------------------------------
10/06/2017 22:21:02 - Identifier : Microsoft.VisualStudio.Component.CoreEditor
10/06/2017 22:21:02 - Name : Visual Studio core editor
10/06/2017 22:21:02 - Version : [15.0,)
10/06/2017 22:21:02 -
10/06/2017 22:21:02 - -------------------------------------------------------
10/06/2017 22:21:02 - Identifier : Microsoft.VisualStudio.Component.VC.CoreIde
10/06/2017 22:21:02 - Name : Visual Studio C++ core features
10/06/2017 22:21:02 - Version : [15.0,16.0)
10/06/2017 22:21:02 -
10/06/2017 22:21:02 - Signature Details...
10/06/2017 22:21:02 - Extension is not signed.
10/06/2017 22:21:02 -
10/06/2017 22:21:02 - Searching for applicable products...
10/06/2017 22:21:02 - Found installed product - Global Location
10/06/2017 22:21:02 - Found installed product - Visual Studio Build Tools 2017 (2)
10/06/2017 22:21:02 - System.IO.FileNotFoundException: C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools
at System.Diagnostics.FileVersionInfo.GetVersionInfo(String fileName)
at VSIXInstaller.SupportedVSSKU.get_VersionWithBuildRevisionInfo()
at VSIXInstaller.App.IsValidSKUForExtension(SupportedVSSKU supportedSKU, IExtension extension, List1 validSKUs) at VSIXInstaller.App.ShouldAddSkuToValidSkuList(SupportedVSSKU sku, IInstallableExtension extension, List1 validSKUs)
at VSIXInstaller.App.GetInstallableData(String vsixPath, Boolean isRepairSupported, IEnumerable1& skuData) at VSIXInstaller.App.Initialize(Boolean isRepairSupported) at VSIXInstaller.App.Initialize() at System.Threading.Tasks.Task1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()

this happened on the last version currently available.