File or arguments not valid for site template

我遇到这个情况：

CreateVariationHierarchiesJob catches Exception.  System.ArgumentException: File or arguments not valid for site template 'xxxx'.  Parameter name: WebTemplate     at Microsoft.SharePoint.SPWebTemplateCollection.get_Item(String strKey)     at Microsoft.SharePoint.SPWeb.ApplyWebTemplate(String strWebTemplate)     at Microsoft.SharePoint.SPWeb.CreateWeb(String strWebUrl, String strTitle, String strDescription, UInt32 nLCID, String strWebTemplate, Boolean bCreateUniqueSubweb, Boolean bConvertIfThere)     at Microsoft.SharePoint.SPWebCollection.Add(String strWebUrl, String strTitle, String strDescription, UInt32 nLCID, String strWebTemplate, Boolean useUniquePermissions, Boolean bConvertIfThere)     at Microsoft.SharePoint.Publishing.PublishingWebCollection.addPublishingWeb(String newAreaUrl, UInt32 languageId, String webTemplateName)     at Microsoft.SharePoint.Publishing.Internal.CreateVariationHierarchiesJobDefinition.CreateVariationSourceTopWeb(SPWeb rootWeb, SPWeb varRootWeb, PublishingWeb varRootArea, VariationLabel sourceLabel, PublishingWeb sourceTopArea, CachedVariationSettings variationSettings, LongRunningOperationJob lroLogger, List`1 errors, Boolean& operationFailed)     at Microsoft.SharePoint.Publishing.Internal.CreateVariationHierarchiesJobDefinition.PerformVariationsSpawn(SPWorkItem workItem, SPWeb currentWeb, CachedVariationSettings variationSettings)

重启一下SPTimerv4服务就好了。