Error when terminating API

[JohnHon]

Dear all,

I am writing a window form application.

When I terminate the api, there will be an error that cannot be catch with try-catch in C#.

Does anyone know the reasons and how to fix it?

Code:

if (Autodesk.Navisworks.Api.Controls.ApplicationControl.IsInitialized)
Autodesk.Navisworks.Api.Controls.ApplicationControl.Terminate();

Error:

Message:Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

Stack trace: 

at Autodesk.Navisworks.Api.Interop.LcOpState.InternalCleanup(Boolean queue)
at Autodesk.Navisworks.Internal.ApiImplementation.Manager.Invalidate()
at Autodesk.Navisworks.Internal.ApiImplementation.ApplicationImpl.TerminateApi()
at Autodesk.Navisworks.Api.Controls.ApplicationControl.TerminateImpl()
at MDIViewer.Program.Main() in D:\......\Program.cs:line 225
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
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()

Thanks,

John

[xiaodong_liang]

Hi John,

this is a mysterious issue to me. Can the SDK sample of .NET control work? if yes, could you compare it with your sample?

if you still have the problem, please provide a test demo.

[JohnHon]

Hi Xiaodong,

I am sorry that I cannot trigger that error in SDK or MDI viewer.

I will try to provide a test model, but I am not sure I can produce it.

Thanks,

John

[xiaodong_liang]

I 'd suggest to compare the project setting to figure out which one may cause the problem.