sql server还原数据库失败

Microsoft.SqlServer.Management.RelationalEngineTasks)

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程序位置:

   在 Microsoft.SqlServer.Management.RelationalEngineTasks.RestoreDatabaseTaskFormComponent.PerformTask(ITaskExecutionContext context)
   在 Microsoft.SqlServer.Management.RelationalEngineTasks.RestoreDatabaseTaskFormComponent.Perform(ITaskExecutionContext context)
   在 Microsoft.SqlServer.Management.TaskForms.TaskExecutionManager.ExecuteTaskSequence(ISfcScriptCollector collector)

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Microsoft.Data.SqlClient.SqlError: BACKUP LOG cannot be performed because there is no current database backup. (Microsoft.SqlServer.SmoExtended)

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有关帮助信息，

https://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=16.200.48036.0&LinkId=20476

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程序位置:

   在 Microsoft.SqlServer.Management.Smo.RestorePlan.Execute()
   在 Microsoft.SqlServer.Management.RelationalEngineTasks.RestoreDatabaseTaskFormComponent.PerformTask(ITaskExecutionContext context)