Visual studio “卸载Visual Studio 2017”；分析值“时遇到意外字符”；

我正在尝试在Windows 10 Professional上使用Visual Studio安装程序卸载Visual Studio Enterprise 2017，但尝试卸载时遇到以下错误：

[0d1c:002d][2020-02-12T16:28:26] Error 0x80131500: Unexpected character encountered while parsing value: <. Path ''.
   at Newtonsoft.Json.JsonTextReader.ParseValue()
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ReadForType(JsonReader reader, JsonContract contract, Boolean hasConverter)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonSerializer.Deserialize[T](JsonReader reader)
   at Microsoft.VisualStudio.Setup.Serialization.ModelSerializer`1.Deserialize(TextReader reader)
   at Microsoft.VisualStudio.Setup.Cache.DirectoryRepository.GetPackage(IPackageIdentity identity)
   at Microsoft.VisualStudio.Setup.Cache.CacheRepository.GetPackage(IPackageIdentity identity)
   at Microsoft.VisualStudio.Setup.Installer.Extensions.IsPayloadRequired(IInstallablePackage package, ExecuteAction action, IServiceProvider services, ExecuteAction bootstrapperAction)
   at Microsoft.VisualStudio.Setup.InstallOperation.CreateDownloadInstallActivities(InstallablePackage installable, ExecuteAction action, Boolean isPresent)
   at Microsoft.VisualStudio.Setup.InstallOperation.PlanInstallable(InstallablePackage installable, Dictionary`2 downloadLookup, PackagePlan& packagePlan, Boolean repairPackagesWithDuplicateFiles, Boolean upgradeConfigurationPackage)
   at Microsoft.VisualStudio.Setup.InstallOperation.Plan()
   at Microsoft.VisualStudio.Setup.InstallOperation.Schedule()
   at Microsoft.VisualStudio.Setup.Engine.CreateInstallOperation(Product product, String destination, ExecuteAction action, ITelemetryOperation telemetryOperation)
   at Microsoft.VisualStudio.Setup.Engine.Uninstall(CancellationToken token)

---

[0d1c:002d][2020-02-12T16:28:26]错误0x80131500:分析值时遇到意外字符：我也遇到了同样的情况。无法修复或更新

Newtonsoft.Json.JsonReaderException: Unexpected character encountered while parsing value: . Path '', line 1, position 146.
   at Microsoft.VisualStudio.Setup.Engine.Initialize()
   at Microsoft.VisualStudio.Setup.Engine.GetProducts()
   at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.IntializePackages()
   at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.GetPrerequisitesInternal(IInstallableExtension extension, ICollection`1 installedPackages, ICollection`1 installablePackages, ICollection`1 unresolvedReferences)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.GetPrerequisites(IInstallableExtension extension, IEnumerable`1& installedPackages, IEnumerable`1& installablePackages, IEnumerable`1& unresolvedReferences)
   at VSIXInstaller.ExtensionService.GetInstallableData(String vsixPath, String extensionPackParentName, Boolean isRepairSupported, IStateData stateData, IEnumerable`1& skuData)
   at VSIXInstaller.App.Initialize(Boolean isRepairSupported)
   at VSIXInstaller.App.Initialize()
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)

要卸载，请使用：
您好，欢迎使用堆栈溢出。为了使读者更容易，并且如果微软（RE）移动链接，请确保答案仍然是有用的，请考虑编写解决方案HeEre的快速摘要，例如，用于卸载产品的路径、可执行文件和命令行参数。