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Editorial Team
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Asked: 2026-06-06T19:06:41+00:00

I am building an application in C# visual studio 2012 RC. I have to

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I am building an application in C# visual studio 2012 RC.

I have to run the scripts within the application. for this i am using.
These two libraries.
My application’s target .net framework is 4.5.

using Microsoft.SqlServer.Management.Smo;
using Microsoft.SqlServer.Management.Common;

I wrote the code to run the scripts after checking weather database exists or not.

When i run the code an unexpected exception pops up. i really know what does it mean. Could you please help me in order to get rid of this exception.

I am attaching the my code and exception preview also.

Please HELP ME… I have googled too much already.

enter image description here

**Here are the Exception Details.**

System.IO.FileLoadException was unhandled
HResult=-2146232799
Message=Mixed mode assembly is built against version ‘v2.0.50727’ of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.
Source=mscorlib
StackTrace:
at System.Reflection.RuntimeAssembly.GetType(RuntimeAssembly assembly, String name, Boolean throwOnError, Boolean ignoreCase, ObjectHandleOnStack type)
at System.Reflection.RuntimeAssembly.GetType(String name, Boolean throwOnError, Boolean ignoreCase)
at System.Reflection.Assembly.GetType(String name, Boolean throwOnError)
at Microsoft.SqlServer.Management.Common.ServerConnection.GetStatements(String query, ExecutionTypes executionType, Int32& statementsToReverse)
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType)
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand)
at McFarlaneIndustriesPOSnamespace.SplashScreen.CreateDatabase() in e:\Works\McFarlane Industries\McFarlane Industries Point of Sale Source Code\McFarlaneIndustries\SplashScreen.cs:line 139
at McFarlaneIndustriesPOSnamespace.SplashScreen.splashScreenTimer_Tick(Object sender, EventArgs e) in e:\Works\McFarlane Industries\McFarlane Industries Point of Sale Source Code\McFarlaneIndustries\SplashScreen.cs:line 159
at System.Windows.Forms.Timer.OnTick(EventArgs e)
at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at McFarlaneIndustriesPOSnamespace.Program.Main() in e:\Works\McFarlane Industries\McFarlane Industries Point of Sale Source Code\McFarlaneIndustries\Program.cs:line 19
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
at System.Activator.CreateInstance(ActivationContext activationContext)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:

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1 Answer

  1. Editorial Team

    It looks like you’re trying to load .net 2 version of Microsoft.SqlServer.xxxx.dll. Update your references to a .net4 version (preferable), or add the following mantra to your app.config under the <configuration> node

    <startup useLegacyV2RuntimeActivationPolicy="true">
  <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
  <requiredRuntime version="v4.0" />
</startup>

    to allow loading of .net 2 assemblies. See here for details.

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