我正在尝试使用 Azure Powershell cmdlet 和 Set-AzureServiceDiagnosticsExtension 命令在已部署的云服务上设置 Azure 诊断：
Set-AzureServiceDiagnosticsExtension -StorageContext $storageContext -DiagnosticsConfigurationPath $diagnosticsConfiguration.FullName -ServiceName $serviceName -Slot Production -Role "MyService.Web"-Verbose
这样做我得到以下错误
Exception: Microsoft.WindowsAzure.CloudException: BadRequest: The extension ID
MyService.Web-PaaSDiagnostics-Production-Ext-0 is invalid.
at Microsoft.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task
task)
at Microsoft.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task
task)
at Microsoft.WindowsAzure.HostedServiceOperationsExtensions.AddExtension(IHo
stedServiceOperations operations, String serviceName,
HostedServiceAddExtensionParameters parameters)
at Microsoft.WindowsAzure.Commands.ServiceManagement.Extensions.ExtensionMan
ager.AddExtension(HostedServiceAddExtensionParameters extensionInput)
at Microsoft.WindowsAzure.Commands.ServiceManagement.Extensions.ExtensionMan
ager.InstallExtension(ExtensionConfigurationInput context, String slot,
ExtensionConfiguration extConfig)
at Microsoft.WindowsAzure.Commands.ServiceManagement.Extensions.SetAzureServ
iceDiagnosticsExtensionCommand.ExecuteCommand()
at Microsoft.WindowsAzure.Commands.ServiceManagement.Extensions.SetAzureServ
iceDiagnosticsExtensionCommand.OnProcessRecord()
at Microsoft.WindowsAzure.Commands.Utilities.Common.CloudBaseCmdlet`1.Proces
sRecord()
at System.Management.Automation.Cmdlet.DoProcessRecord()
at System.Management.Automation.CommandProcessor.ProcessRecord()
+ CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorExcep
tion
+ FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorExceptio
n,UpdateDiagnosticsBuildStep.ps1
当我不使用“-Role”参数时它可以工作，但是我必须在调用 Set 命令之前为每个角色调用 Remove-AzureServiceDiagnosticsExtension，这会使每个角色的脚本执行时间增加 2-3 分钟。
Role 参数与我在 Azure 云服务中的角色名称匹配。难道我做错了什么？