为什么“成功”安装了 Visual Studio 2012 的 vsix 模板（出现在 extension 和 update 中）没有出现在 Project Template 中。我只能在工具菜单（扩展和更新）中看到，而在其他任何地方都看不到。所以对我没有用，因为我不能使用新模板...
下面的日志文件
20/06/2013 12:44:02 - Microsoft VSIX Installer
20/06/2013 12:44:02 - -------------------------------------------
20/06/2013 12:44:02 - Initializing Install...
20/06/2013 12:44:02 - Extension Details...
20/06/2013 12:44:02 - Identifier : VSIXProject8.Microsoft.4b7ebf96-1706-45f7-81a9-
7599e03b57fd
20/06/2013 12:44:02 - Name : VSIXProject8
20/06/2013 12:44:02 - Author : Microsoft
20/06/2013 12:44:02 - Version : 1.0
20/06/2013 12:44:02 - Description : custom project template
20/06/2013 12:44:02 - Locale : en-US
20/06/2013 12:44:02 - MoreInfoURL :
20/06/2013 12:44:02 - InstalledByMSI : False
20/06/2013 12:44:02 - SupportedFrameworkVersionRange : 4.5
20/06/2013 12:44:02 -
20/06/2013 12:44:02 - Supported Products :
20/06/2013 12:44:02 - Microsoft.VisualStudio.Pro
20/06/2013 12:44:02 - Version : 11.0
20/06/2013 12:44:02 - Microsoft.VisualStudio.VWDExpress
20/06/2013 12:44:02 - Version : [11.0,12.0)
20/06/2013 12:44:02 -
20/06/2013 12:44:02 - References :
20/06/2013 12:44:02 -
20/06/2013 12:44:02 - Searching for applicable products...
20/06/2013 12:44:02 - Found installed product - Microsoft Visual Studio 2010 Professional
20/06/2013 12:44:02 - Found installed product - Microsoft Visual Studio Professional 2012
20/06/2013 12:44:03 - The extension with ID 'VSIXProject8.Microsoft.4b7ebf96-1706-45f7-81a9-
7599e03b57fd' is not installed to Microsoft Visual Studio Professional 2012.
20/06/2013 12:44:03 - Found installed product - Microsoft LightSwitch for Visual Studio 2012
20/06/2013 12:44:03 - Found installed product - Microsoft Visual Studio 2012 Shell (Integrated)
20/06/2013 12:44:03 - Found installed product - Global Location
20/06/2013 12:44:11 - The following target products have been selected...
20/06/2013 12:44:11 - Microsoft Visual Studio Professional 2012
20/06/2013 12:44:11 -
20/06/2013 12:44:11 - Beginning to install extension to Microsoft Visual Studio Professional 2012...
20/06/2013 12:44:12 - Install to Microsoft Visual Studio Professional 2012 completed successfully.
The extension has been installed to C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 11.0\\COMMON7
\IDE\EXTENSIONS\M3QOTQPH.Q5E\