Visual Studio "15" 预览卸载

Question

我正在尝试安装 VS“15”预览版 5，我已经启动了新的安装程序，现在提示我必须卸载以前的版本（预览版 4）。当我单击删除按钮时，卸载过程失败，这是日志文件中的错误：

2016-10-05T23:20:59 : Verbose : Getting installed product. [installerId: SetupEngine, installationId: 9554cc50, productId: Microsoft.VisualStudio.Product.Enterprise]

2016-10-05T23:20:59 : Verbose : Calling SetupEngine.Installer.UninstallProduct. [installPath: 'C:\Program Files (x86)\Microsoft Visual Studio\VS15Preview']

2016-10-05T23:20:59 : Error : Failed to get installed product. [installerId: SetupEngine, installationId: 9554cc50, productId: Microsoft.VisualStudio.Product.Enterprise, error: Sequence contains more than one element at    at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
   at Microsoft.VisualStudio.Setup.Cache.CommonExtensions.GetProduct(IInstance instance, Boolean installedOnly)
   at Microsoft.VisualStudio.Setup.InstalledProductsProviderService.CorrectChannelInformation(Instance instance)
   at Microsoft.VisualStudio.Setup.InstalledProductsProviderService.GetInstalledProductForPathImpl(String path)
   at Microsoft.VisualStudio.Setup.InstalledProductsProviderService.GetInstalledProductImpl(InstalledProductSummary productSummary)
   at Microsoft.VisualStudio.Setup.InstalledProductsProviderService.GetInstalledProduct(InstalledProductSummary productSummary)]

2016-10-05T23:20:59 : Verbose : SetupEngine.Installer.UninstallProduct reported error.  [InvalidOperationException: Sequence contains more than one element at    at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
   at Microsoft.VisualStudio.Setup.Cache.CommonExtensions.GetProduct(IInstance instance, Boolean installedOnly)
   at Microsoft.VisualStudio.Setup.Cache.CacheRepository.GetAvailablePackages()
   at Microsoft.VisualStudio.Setup.Engine.Initialize()
   at Microsoft.VisualStudio.Setup.Engine.Uninstall(CancellationToken token)
   at Microsoft.VisualStudio.Setup.InstallerService.UninstallProductImpl(InstalledProductSummary productSummary, TelemetryContext telemetryContext, CancellationToken cancellationToken)
   at Microsoft.VisualStudio.Setup.InstallerService.UninstallProduct(InstalledProductSummary productSummary, TelemetryContext telemetryContext, CancellationToken cancellationToken)]

2016-10-05T23:21:00 : Verbose : Getting installed product summaries. [installerId: SetupEngine]

2016-10-05T23:21:00 : Verbose : Getting product summaries. [installerId: SetupEngine]

有人可以帮助我吗？

Answer 1

您必须先卸载 Visual Studio“15”的所有先前版本，然后才能尝试预览版 5，并且可以通过 Visual Studio 安装程序或使用 Control 中的“卸载程序”卸载先前版本控制板。当 Visual Studio 安装程序无法运行时，我们可以手动删除 Visual Studio 如下：

关闭 Visual Studio 安装程序
删除文件夹 %ProgramData%\Microsoft\VisualStudio\Packages\
删除Visual Studio文件夹安装文件夹（一般在%ProgramFiles(x86)%\Microsoft Visual Studio\VS15Preview下）
之后把之前的安装去掉。再次启动 Visual Studio Preview ‘15’ 的安装程序进行安装更多关于VS预览版‘15’安装的详细信息，可以查看here.

Visual Studio "15" 预览卸载

Visual Studio "15" Preview uninstall

uninstallation

visual-studio

logfile

visual-studio-2017