我似乎无法安装WebEssentials，即使我得到了VSIX扩展的VS图标并在程序中更新了VS12，我仍然遇到了这个错误。
2013-02-07 21:59:15 - Microsoft VSIX Installer
2013-02-07 21:59:15 - -------------------------------------------
2013-02-07 21:59:15 - Initializing Install...
2013-02-07 21:59:16 - Extension Details...
2013-02-07 21:59:16 - Identifier : 5fb7364d-2e8c-44a4-95eb-2a382e30fec7
2013-02-07 21:59:16 - Name : Web Essentials 2012
2013-02-07 21:59:16 - Author : Mads Kristensen
2013-02-07 21:59:16 - Version : 2.4.5
2013-02-07 21:59:16 - Description : Adds many useful features to Visual Studio for web developers.
2013-02-07 21:59:16 - Locale : en-US
2013-02-07 21:59:16 - MoreInfoURL : http://vswebessentials.com/changelog
2013-02-07 21:59:16 - InstalledByMSI : False
2013-02-07 21:59:16 - SupportedFrameworkVersionRange : 4.5
2013-02-07 21:59:16 -
2013-02-07 21:59:16 - Supported Products :
2013-02-07 21:59:16 - Microsoft.VisualStudio.Pro
2013-02-07 21:59:16 - Version : 11.0
2013-02-07 21:59:16 -
2013-02-07 21:59:16 - References :
2013-02-07 21:59:16 - -------------------------------------------------------
2013-02-07 21:59:16 - Identifier : Microsoft.VisualStudio.MPF.11.0
2013-02-07 21:59:16 - Name : Visual Studio MPF 11.0
2013-02-07 21:59:16 - Version : 11.0
2013-02-07 21:59:16 - MoreInfoURL :
2013-02-07 21:59:16 - Nested : No
2013-02-07 21:59:16 -
2013-02-07 21:59:16 -
2013-02-07 21:59:16 - Searching for applicable products...
2013-02-07 21:59:16 - Found installed product - Microsoft Visual Studio Express 2012 for Web
2013-02-07 21:59:16 - Found installed product - Global Location
2013-02-07 21:59:16 - VSIXInstaller.NoApplicableSKUsException: This extension is not installable on any currently installed products.
at VSIXInstaller.App.InitializeInstall()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
我能想到的唯一意外情况是，我没有使用自定义文件夹来安装VS12。谢谢你的关注。