I am running VS2017 RC and when I try to install the Telerik ASP.NET AJAX 2016.5.1111.0 extension, it fails to install with an error. Below is the text from the install log
12/27/2016 5:18:49 AM - Microsoft VSIX Installer
12/27/2016 5:18:49 AM - -------------------------------------------
12/27/2016 5:18:49 AM - vsixinstaller.exe version:
12/27/2016 5:18:49 AM - 15.0.26014.0 built by: D15REL
12/27/2016 5:18:49 AM - -------------------------------------------
12/27/2016 5:18:49 AM - Command line parameters:
12/27/2016 5:18:49 AM - C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\VSIXInstaller.exe,C:
\Users\e0019249\Downloads\Telerik.Web.UI.VSPackage.vsix
12/27/2016 5:18:49 AM - -------------------------------------------
12/27/2016 5:18:49 AM - Microsoft VSIX Installer
12/27/2016 5:18:49 AM - -------------------------------------------
12/27/2016 5:18:49 AM - Initializing Install...
12/27/2016 5:18:49 AM - Extension Details...
12/27/2016 5:18:49 AM - Identifier : 057d8865-d4bb-46e8-b71e-e24fed08f4b9
12/27/2016 5:18:49 AM - Name : Telerik ASP.NET AJAX VSExtensions
12/27/2016 5:18:49 AM - Author : TelerikInc
12/27/2016 5:18:49 AM - Version : 2016.5.1111.0
12/27/2016 5:18:49 AM - Description : Telerik UI for ASP.NET AJAX VSExtensions
12/27/2016 5:18:49 AM - Locale : en-US
12/27/2016 5:18:49 AM - MoreInfoURL : https://visualstudiogallery.msdn.microsoft.com/4762f91c-c69f-43dc-
8a69-2ec4ab27c610
12/27/2016 5:18:49 AM - InstalledByMSI : False
12/27/2016 5:18:49 AM - SupportedFrameworkVersionRange : [4.0,)
12/27/2016 5:18:49 AM -
12/27/2016 5:18:49 AM - SignatureState : Unsigned
12/27/2016 5:18:49 AM - Supported Products :
12/27/2016 5:18:49 AM - Microsoft.VisualStudio.Pro
12/27/2016 5:18:49 AM - Version : [11.0,16.0)
12/27/2016 5:18:49 AM -
12/27/2016 5:18:49 AM - References :
12/27/2016 5:18:49 AM - -------------------------------------------------------
12/27/2016 5:18:49 AM - Identifier : Microsoft.VisualStudio.MPF
12/27/2016 5:18:49 AM - Name : Visual Studio MPF
12/27/2016 5:18:49 AM - Version : [11.0,16.0)
12/27/2016 5:18:49 AM - MoreInfoURL :
12/27/2016 5:18:49 AM - Nested : No
12/27/2016 5:18:49 AM -
12/27/2016 5:18:49 AM - -------------------------------------------------------
12/27/2016 5:18:49 AM - Identifier : d4f5086c-54b9-4b07-bd22-af72d5b9228f
12/27/2016 5:18:49 AM - Name : Telerik.CommonPackage
12/27/2016 5:18:49 AM - Version :
12/27/2016 5:18:49 AM - MoreInfoURL :
12/27/2016 5:18:49 AM - Nested : Yes
12/27/2016 5:18:49 AM -
12/27/2016 5:18:49 AM - -------------------------------------------------------
12/27/2016 5:18:49 AM - Identifier : 94c35263-71d0-4f81-886e-c1e23ea9c837
12/27/2016 5:18:49 AM - Name : Telerik UserSettings VSExtensions
12/27/2016 5:18:49 AM - Version :
12/27/2016 5:18:49 AM - MoreInfoURL :
12/27/2016 5:18:49 AM - Nested : Yes
12/27/2016 5:18:49 AM -
12/27/2016 5:18:49 AM - Prerequisites :
12/27/2016 5:18:49 AM - -------------------------------------------------------
12/27/2016 5:18:49 AM - Identifier : Microsoft.VisualStudio.Component.Web
12/27/2016 5:18:49 AM - Name : Web development tools
12/27/2016 5:18:49 AM - Version : [15.0,16.0)
12/27/2016 5:18:49 AM -
12/27/2016 5:18:49 AM - Signature Details...
12/27/2016 5:18:49 AM - Extension is not signed.
12/27/2016 5:18:49 AM -
12/27/2016 5:18:49 AM - Searching for applicable products...
12/27/2016 5:18:49 AM - Found installed product - Microsoft Visual Studio Enterprise 2015
12/27/2016 5:18:53 AM - An extension with a matching Identifier is already installed to this product.
12/27/2016 5:18:53 AM - Found installed product - Microsoft Visual Studio Professional 2015
12/27/2016 5:18:56 AM - An extension with a matching Identifier is already installed to this product.
12/27/2016 5:18:56 AM - Found installed product - Microsoft Visual Studio Community 2015
12/27/2016 5:19:00 AM - An extension with a matching Identifier is already installed to this product.
12/27/2016 5:19:00 AM - Found installed product - Microsoft Visual Studio 2015 Shell (Integrated)
12/27/2016 5:19:00 AM - Found installed product - Global Location
12/27/2016 5:19:00 AM - Found installed product - ssms
12/27/2016 5:19:00 AM - Found installed product - ssms
12/27/2016 5:19:00 AM - Found installed product - Visual Studio Enterprise 2017 RC
12/27/2016 5:19:03 AM - The extension with ID '057d8865-d4bb-46e8-b71e-e24fed08f4b9' is not installed to Visual Studio
Enterprise 2017 RC.
12/27/2016 5:19:08 AM - The following target products have been selected...
12/27/2016 5:19:08 AM - Visual Studio Enterprise 2017 RC
12/27/2016 5:19:08 AM -
12/27/2016 5:19:11 AM - Beginning to install extension to Visual Studio Enterprise 2017 RC...
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64 declares Chip=x64, but package
Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64 doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:11 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.Extensions.X64 declares Chip=x64, but package
Microsoft.VisualCpp.CodeAnalysis.Extensions.X64 doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64 declares Chip=x64, but package
Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64 doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources declares Chip=x64, but
package Microsoft.VisualCpp.CodeAnalysis.ConcurrencyCheck.X64.Resources doesn't declare a chip
12/27/2016 5:19:12 AM - Dependency Microsoft.VisualCpp.CodeAnalysis.Extensions.X64 declares Chip=x64, but package
Microsoft.VisualCpp.CodeAnalysis.Extensions.X64 doesn't declare a chip
12/27/2016 5:19:12 AM - Install Error : Microsoft.VisualStudio.ExtensionManager.NestedExtensionInstallException: The
extension 'd4f5086c-54b9-4b07-bd22-af72d5b9228f' nested within '057d8865-d4bb-46e8-b71e-e24fed08f4b9' failed to install.
Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an
instance of an object.
at Microsoft.VisualStudio.ExtensionManager.InstallableExtensionImpl.RefreshExtractedPackageStream(IInstalledExtension
parentExtension, IExtensionReference reference)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.InstallNestedExtensions(InstallableExtensionImpl
parentExtension, IInstalledExtension installedParentExtension, ZipPackage parentVSIX, InstallFlags installFlags,
IDictionary`2 extensionsInstalledSoFar, List`1 extensionsUninstalledSoFar, IInstalledExtensionList
modifiedInstalledExtensionsList, AsyncOperation asyncOp, IProgress`1 progress)
--- End of inner exception stack trace ---
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.InstallNestedExtensions(InstallableExtensionImpl
parentExtension, IInstalledExtension installedParentExtension, ZipPackage parentVSIX, InstallFlags installFlags,
IDictionary`2 extensionsInstalledSoFar, List`1 extensionsUninstalledSoFar, IInstalledExtensionList
modifiedInstalledExtensionsList, AsyncOperation asyncOp, IProgress`1 progress)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.PerformLegacyInstall(InstallableExtensionImpl extension,
IDictionary`2 extensionsInstalledSoFar, List`1 extensionsUninstalledSoFar, IInstalledExtensionList
modifiedInstalledExtensionsList, IProgress`1 progress, InstallFlags installFlags, AsyncOperation asyncOp, Boolean
isPackComponent, IInstalledExtension& newExtension)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.PerformSetupEngineInstall(InstallableExtensionImpl
extension, Boolean installPerMachine, Boolean isPackComponent, IDictionary`2 extensionsInstalledSoFar, List`1
extensionsUninstalledSoFar, IInstalledExtensionList modifiedInstalledExtensionsList, IProgress`1 progress, InstallFlags
installFlags, AsyncOperation asyncOp, IInstalledExtension& newExtension)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.InstallInternal(InstallableExtensionImpl extension,
InstallFlags installFlags, IDictionary`2 extensionsInstalledSoFar, List`1 extensionsUninstalledSoFar,
IInstalledExtensionList modifiedInstalledExtensionsList, AsyncOperation asyncOp, IProgress`1 progress)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.BeginInstall(IInstallableExtension installableExtension,
InstallFlags installFlags, AsyncOperation asyncOp)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.InstallWorker(IInstallableExtension extension,
InstallFlags installFlags, AsyncOperation asyncOp)