VSIX Installer: SignatureDescription could not be created for the provided signature algorithm

Question

Unable to install Power Tools extension for Visual Studio Professional 2015 RC

• Visual Studio IDE, Tools> Extensions and Updates> Internet> Visual Studio Gallery
• visualstudiogallery.msdn.microsoft.com .

Install Log

 2015-07-22 8:22:27 AM - Microsoft VSIX Installer 2015-07-22 8:22:27 AM - ------------------------------------------- 2015-07-22 8:22:27 AM - Initializing Install... 2015-07-22 8:22:28 AM - Extension Details... 2015-07-22 8:22:28 AM - Identifier : VSProPack.Microsoft.15893CD4-2422-4427-BEA8-4E28DCC26346 2015-07-22 8:22:28 AM - Name : Productivity Power Tools 2015 2015-07-22 8:22:28 AM - Author : Microsoft 2015-07-22 8:22:28 AM - Version : 14.0.23120.0 2015-07-22 8:22:28 AM - Description : A set of extensions to Visual Studio 2015 Community (and above) which improves developer productivity. 2015-07-22 8:22:28 AM - Locale : en-US 2015-07-22 8:22:28 AM - MoreInfoURL : http://go.microsoft.com/fwlink/p/?LinkID=618589 2015-07-22 8:22:28 AM - InstalledByMSI : False 2015-07-22 8:22:28 AM - SupportedFrameworkVersionRange : [4.5,) 2015-07-22 8:22:28 AM - 2015-07-22 8:22:28 AM - System.Security.Cryptography.CryptographicException: SignatureDescription could not be created for the signature algorithm supplied. at System.Security.Cryptography.Xml.SignedXml.CheckSignedInfo(AsymmetricAlgorithm key) at System.Security.Cryptography.Xml.SignedXml.CheckSignature(AsymmetricAlgorithm key) at System.Security.Cryptography.Xml.SignedXml.CheckSignature(X509Certificate2 certificate, Boolean verifySignatureOnly) at MS.Internal.IO.Packaging.XmlDigitalSignatureProcessor.Verify(X509Certificate2 signer) at System.IO.Packaging.PackageDigitalSignature.Verify(X509Certificate signingCertificate) at System.IO.Packaging.PackageDigitalSignature.Verify() at Microsoft.VisualStudio.ExtensionManager.InstallableExtensionImpl.GetSignatureState(ZipPackage vsixPackage) at Microsoft.VisualStudio.ExtensionManager.InstallableExtensionImpl.get_SignatureState() at VSIXInstaller.App.LogExtensionDetails(IExtension extension) at VSIXInstaller.App.InitializeInstall(Boolean isRepairSupported) at VSIXInstaller.App.InitializeInstall() at System.Threading.Tasks.Task.InnerInvoke() at System.Threading.Tasks.Task.Execute() 

Answer 1

The answer was found after scanning in the description section again:

Performance Power Tools 2015 cannot be installed on the RC version of VS 2015.

NOTE:

This version is signed in a way that is not supported by the RC version of Visual Studio 2015. It will be installed only in the RTM version. You can download the RTM version of Visual Studio 2015 here - Visual Studio 2015 Community Edition and above support the installation of Powerivity Tools and other Visual Studio Extensions.

Answer 2

Try installing http://go.microsoft.com/fwlink/?LinkID=619615 (found from http://blogs.msdn.com/b/somasegar/archive/2015/07/29/building-apps-for-windows -10-with-visual-studio-2015.aspx )

I used the Custom installation option and selected everything. He upgraded Visual Studio 2015 Enterprise RC to Visual Studio 2015 Enterprise, and now those extensions that were recently launched so as not to install are installed perfectly. Thus, you will avoid problems with reinstalling everything.

Please note that after the installation is complete, the “Launch Visual Studio” button is displayed, which launches the Enterprise version (or Professional if Professional RC is installed). However, your Windows taskbar shortcuts for Visual Studio 2015 and Blend 2015 will now be corrupted, and you must fix them by right-clicking them and selecting Properties, and then setting them to C: \ Program Files (x86) \ Microsoft Visual Studio 14.0 \ Common7 \ IDE \ devenv.exe and C: \ Program Files (x86) \ Microsoft Visual Studio 14.0 \ Common7 \ IDE \ blend.exe, respectively, if you are using a 64-bit OS - otherwise delete the part "(x86) "and installed Visual Studio on the C: drive. You can also add these links to the Start menu under the appropriate folder (named Visual Studio 2015) if you also skip them from there.