Lightswitch连接到SQL问题

我正在尝试从lightswitch连接到sql2008 express。我尝试了一个简单的表单，但每次尝试保存时，都会出现以下错误：

基础提供程序在打开时失败。 内部异常消息： 无法生成SQL Server的用户实例，因为启动该用户实例的进程失败。连接将被关闭

我检查了SQL日志，下面是我得到的错误：

2011-07-27 16:48:03.34 Server      Error: 17156, Severity: 16, State: 1.
2011-07-27 16:48:03.34 Server      initeventlog: Could not initiate the EventLog Service for the key 'AE98537F-92A7-41', last error code is 2.
2011-07-27 16:48:03.34 Server      Microsoft SQL Server 2008 (SP1) - 10.0.2531.0 (X64) 
    Mar 29 2009 10:11:52 
    Copyright (c) 1988-2008 Microsoft Corporation
    Express Edition (64-bit) on Windows NT 6.1 <X64> (Build 7600: )
2011-07-27 16:48:03.34 Server      (c) 2005 Microsoft Corporation.
2011-07-27 16:48:03.34 Server      All rights reserved.
2011-07-27 16:48:03.34 Server      Server process ID is 11732.
2011-07-27 16:48:03.34 Server      System Manufacturer: 'Sony Corporation', System Model: 'VPCF116FGI'.
2011-07-27 16:48:03.34 Server      Authentication mode is WINDOWS-ONLY.
2011-07-27 16:48:03.34 Server      Logging SQL Server messages in file 'C:\Users\user-name\AppData\Local\Microsoft\Microsoft SQL Server Data\SQLEXPRESS\error.log'.
2011-07-27 16:48:03.34 Server      Registry startup parameters: 
     -d C:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\DATA\master.mdf
     -e C:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\Log\ERRORLOG
     -l C:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\DATA\mastlog.ldf
2011-07-27 16:48:03.34 Server      Command Line Startup Parameters:
     -U C:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\Template Data
     -d C:\Users\user-name\AppData\Local\Microsoft\Microsoft SQL Server Data\SQLEXPRESS\master.mdf
     -l C:\Users\user-name\AppData\Local\Microsoft\Microsoft SQL Server Data\SQLEXPRESS\mastlog.ldf
     -e C:\Users\user-name\AppData\Local\Microsoft\Microsoft SQL Server Data\SQLEXPRESS\error.log
     -c
     -S SQLEXPRESS
     -s AE98537F-92A7-41
     -w 60
2011-07-27 16:48:03.36 Server      SQL Server is starting at normal priority base (=7). This is an informational message only. No user action is required.
2011-07-27 16:48:03.36 Server      Detected 8 CPUs. This is an informational message; no user action is required.
2011-07-27 16:48:03.38 Server      Perfmon counters for resource governor pools and groups failed to initialize and are disabled.
2011-07-27 16:48:03.38 Server      Using dynamic lock allocation.  Initial allocation of 2500 Lock blocks and 5000 Lock Owner blocks per node.  This is an informational message only.  No user action is required.
2011-07-27 16:48:03.42 Server      Node configuration: node 0: CPU mask: 0x00000000000000ff Active CPU mask: 0x00000000000000ff. This message provides a description of the NUMA configuration for this computer. This is an informational message only. No user action is required.
2011-07-27 16:48:03.44 spid6s      Starting up database 'master'.
2011-07-27 16:48:03.59 spid6s      Error: 5598, Severity: 16, State: 2.
2011-07-27 16:48:03.59 spid6s      FILESTREAM feature is not supported on user instances.
2011-07-27 16:48:03.59 spid6s      FILESTREAM: effective level = 0, configured level = 0, file system access share name = 'SQLEXPRESS'.
2011-07-27 16:48:03.60 spid6s      SQL Trace ID 1 was started by login "sa".
2011-07-27 16:48:03.61 spid6s      Starting up database 'mssqlsystemresource'.
2011-07-27 16:48:03.63 spid6s      The resource database build version is 10.00.2531. This is an informational message only. No user action is required.
2011-07-27 16:48:04.11 spid9s      Starting up database 'model'.
2011-07-27 16:48:04.11 Server      Server local connection provider is ready to accept connection on [ \\.\pipe\AE98537F-92A7-41\tsql\query ].
2011-07-27 16:48:04.11 Server      Dedicated administrator connection support was not started because it is disabled on this edition of SQL Server. If you want to use a dedicated administrator connection, restart SQL Server using the trace flag 7806. This is an informational message only. No user action is required.
2011-07-27 16:48:04.12 spid6s      Server name is '7LPT-user-name\AE98537F-92A7-41'. This is an informational message only. No user action is required.
2011-07-27 16:48:04.12 spid9s      Error: 17204, Severity: 16, State: 1.
2011-07-27 16:48:04.12 spid9s      FCB::Open failed: Could not open file C:\Program Files (x86)\Microsoft SQL Server\MSSQL.1\MSSQL\Template Data\model.mdf for file number 1.  OS error: 2(The system cannot find the file specified.).
2011-07-27 16:48:04.12 spid9s      Error: 5120, Severity: 16, State: 101.
2011-07-27 16:48:04.12 spid9s      Unable to open the physical file "C:\Program Files (x86)\Microsoft SQL Server\MSSQL.1\MSSQL\Template Data\model.mdf". Operating system error 2: "2(The system cannot find the file specified.)".
2011-07-27 16:48:04.12 spid9s      Error: 17207, Severity: 16, State: 1.
2011-07-27 16:48:04.12 spid9s      FileMgr::StartLogFiles: Operating system error 2(The system cannot find the file specified.) occurred while creating or opening file 'C:\Program Files (x86)\Microsoft SQL Server\MSSQL.1\MSSQL\Template Data\modellog.ldf'. Diagnose and correct the operating system error, and retry the operation.
2011-07-27 16:48:04.12 spid9s      File activation failure. The physical file name "C:\Program Files (x86)\Microsoft SQL Server\MSSQL.1\MSSQL\Template Data\modellog.ldf" may be incorrect.
2011-07-27 16:48:04.12 spid9s      Error: 945, Severity: 14, State: 2.
2011-07-27 16:48:04.12 spid9s      Database 'model' cannot be opened due to inaccessible files or insufficient memory or disk space.  See the SQL Server errorlog for details.
2011-07-27 16:48:04.12 spid9s      Could not create tempdb. You may not have enough disk space available. Free additional disk space by deleting other files on the tempdb drive and then restart SQL Server. Check for additional errors in the event log that may indicate why the tempdb files could not be initialized.
2011-07-27 16:48:04.12 spid9s      SQL Trace was stopped due to server shutdown. Trace ID = '1'. This is an informational message only; no user action is required.

我检查了SQL Server代理SQLExpress，在错误发生后它将被关闭

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我正在运行VS-2010，在Win7 64位上运行SQL 2008和SQL 2008 Express。

我怀疑这与我遇到的问题类似。我安装Visual Studio时没有安装SQL Server Express，因为我的开发计算机上已经安装了SQL Server 2008。后来我安装了SQLServerExpress，但我根本无法让Lightswitch像您描述的那样工作。我删除了两个版本的SQL Server。重新安装的SQL Server Express和Lightswitch在此之后工作正常。我没有再次重新安装SQL Server 2008。我正在使用网络上真正的服务器来完成这项工作