如何在SSIS中运行Excel宏时修复System.NullReferenceException错误？

我在SSIS 2008上设置了一个包，其中包含一个运行excel宏的vb脚本。它在Business Intelligence Development Studio（BIDS）2008上运行，但仍然出现以下错误：

Error: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object. 
at ST_e916156b0e6449b58e21905bd635ecf0.vbproj.ScriptMain.Main() 
--- End of inner exception stack trace --- 
at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) 
at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) 
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) 
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) 
at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) 
at System.Type.InvokeMember(String name, BindingFlags invokeAttr, Binder binder, Object target, Object[] args, CultureInfo culture) 
at Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTATaskScriptingEngine.ExecuteScript() 

Executed as user: 'myusername'. 
Code: 0xFFFFFFFF 
Source: Run macro script excel macro Description: Microsoft Excel cannot access the file 'book1.XLS'. 
There are several possible reasons: 
? The file name or path does not exist. 
? The file is being used by another program. 
? The workbook you are trying to save has the same name as a currently open workbook. 
End Error 
DTExec: The package execution returned DTSER_SUCCESS (0). 
Started: 11:18:15 Finished: 11:18:19 
Elapsed: 3.775 seconds. 
The package executed successfully. The step succeeded. 

另外，当我使用SQL agent运行包时，作业成功，但宏未执行，并且出现以下错误：

Error: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object. 
at ST_e916156b0e6449b58e21905bd635ecf0.vbproj.ScriptMain.Main() 
--- End of inner exception stack trace --- 
at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) 
at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) 
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) 
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) 
at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) 
at System.Type.InvokeMember(String name, BindingFlags invokeAttr, Binder binder, Object target, Object[] args, CultureInfo culture) 
at Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTATaskScriptingEngine.ExecuteScript() 

Executed as user: 'myusername'. 
Code: 0xFFFFFFFF 
Source: Run macro script excel macro Description: Microsoft Excel cannot access the file 'book1.XLS'. 
There are several possible reasons: 
? The file name or path does not exist. 
? The file is being used by another program. 
? The workbook you are trying to save has the same name as a currently open workbook. 
End Error 
DTExec: The package execution returned DTSER_SUCCESS (0). 
Started: 11:18:15 Finished: 11:18:19 
Elapsed: 3.775 seconds. 
The package executed successfully. The step succeeded. 

但是，我可以完全访问本地服务器和网络，并且尝试在32位和64位上运行，但没有成功

如何解决此问题？

您可以尝试的事项： 根据我个人的经验，Excel在使用SSI时总是很棘手的。从错误消息中可以看到，请验证是否可以排除与问题相关的以下信息

• 检查运行SQL Server代理服务的用户帐户。您可以通过导航到

  Windows开始

  \

  控制面板

  \

  管理工具

  \

  服务

  来完成此操作。查找名为SQL Server Agent（）的服务

• 确保该帐户可以访问存储Excel文件的文件夹

• 确认您没有打开Excel文件

• 在SQL Server代理作业上，单击执行包的步骤。如果您正在SQL Server Integration Services包的类型下运行该包，请确保选中了“执行选项”选项卡上的“用户32位运行时”框

• 也可以手动双击包文件（.dtsx）。这将带来执行包的DTEXEC实用程序。如果您使用的是配置文件，请在“配置”选项卡上附加配置文件。运行包。如果它在凭据下的DTEXEC实用程序中运行，而不是在SQLServer代理下运行，我通常会发现这与权限问题有关

---

这看起来像是脚本任务中的异常。看看你的任务代码。查看脚本任务时，请参阅以获取想法。我已经查看了脚本，但看不到脚本中的异常来自何处..Public Sub Main（）Dim宏\u名称作为字符串Dim文件\u名称作为字符串Dim文件\u名称2作为字符串Dim ExcelObject作为新的Microsoft.Office.Interop.Excel.Application ExcelObject.Visible=True ExcelObject.DisplayAlerts=False ExcelObject.UserControl=False尝试Dim OBOK作为Microsoft.Office.Interop.Excel.Workbook的wb Dim oBooks为Microsoft.Office.Interop.Excel.Workbooks Dim pbCancel为Boolean=False宏\u name=“Macro001”文件\u name=“c\book1.xls”文件\u name=“c\book2.xls”ExcelObject=CType（CreateObject（“Excel.Application”），Microsoft.Office.Interop.Excel.Application）ExcelObject.Visible=True ExcelObject.UserControl=False ExcelObject.DisplayAlerts=False oBooks=ExcelObject.Workbooks oBook=CType（oBooks.Open（文件名2），Microsoft.Office.Interop.Excel.WorkbookClass）oBook=CType（oBooks.Open（文件名）、Microsoft.Office.Interop.Excel.WorkbookClass）ExcelObject.Run（宏名）ExcelObject.DisplayAlerts=TrueExcelObject=Nothing Dim FireReach As Boolean=True Catch ex As Exception Dts.Events.FireError（-1，“脚本Excel宏”，ex.Message，String.Empty，0）Dts.TaskResult=ScriptResults.Failure End Try ExcelObject.Application.Quit（）Dts.TaskResult=ScriptResults.Success End Sub-End ClassIt也通过DTEXEC实用程序工作，并得到相同的错误。如何检查SQL代理权限？