---
title: "LOCALDB_ERROR_NOT_INSTALLED | Microsoft Docs"
ms.custom: ""
ms.date: "03/04/2017"
ms.prod: sql
ms.reviewer: ""
ms.technology: performance
ms.topic: "reference"
ms.assetid: e7912885-1c14-409b-9022-83ad4c36f3bd
author: "stevestein"
ms.author: "sstein"
---
# LOCALDB_ERROR_NOT_INSTALLED
[!INCLUDE[appliesto-ss-xxxx-xxxx-xxx-md](../../includes/appliesto-ss-xxxx-xxxx-xxx-md.md)]
    
## Details  
  
|||  
|-|-|  
|Product Name|SQL Server|  
|Event ID|278|  
|Event Source|SQL Server Local Database Runtime 12.0|  
|Component|Local Database Runtime API|  
|Message Text|Note: The message text is empty, because this message means that the entire LocalDB API (including the FormatMessage function that maps HRESULTS into message text) is not available.|  
  
## Explanation  
 The Local Database Runtime is not installed on the computer.  
  
## User Action  
 Install the Local Database Runtime and try the operation again.