InvalidCastException on LyncClient.GetClient()

I cget an exception on "LyncClient.GetClient()" - I've tried this one two different machines, and I'm getting the same results. Here are the details:
Visual Studio 2012
Lync 2013 Client installed, with silverlight (part of Office 2013), and running/signed in
Lync 2013 SDK installed
I've first tried writing my own test project, but I'm also getting the same error on the sample projects (sample project: ContactInformation, MainWindow.xaml.cs, line 66). Here's the exception details:
InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.Office.Uc.UCOfficeIntegration'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{6A222195-F65E-467F-8F77-EB180BD85288}'
failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).
Stack Trace:    at Microsoft.Lync.Model.LyncClient.EnsureOI()
   at Microsoft.Lync.Model.LyncClient.GetClient()
   at ContactInformation.MainWindow.Window_Loaded(Object sender, RoutedEventArgs e) in c:\Program Files (x86)\Microsoft Office\Office15\LyncSDK\samples\ContactInformation\MainWindow.xaml.cs:line 66
Note: I've also tried adding a reference to C:\Program Files (x86)\Microsoft Office\Office15\LyncSDK\Assemblies\Desktop\Microsoft.Office.Uc.dll
When doing the "GetClient()", I get the following exception, instead: "The type initializer for 'Microsoft.Lync.Model.LyncClient' threw an exception."
InnerException:
{"Could not load file or assembly 'Microsoft.Office.Uc, Version=15.0.4454.1509, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The system cannot find the file specified.":"Microsoft.Office.Uc, Version=15.0.4454.1509,
Culture=neutral, PublicKeyToken=71e9bce111e9429c"}

The Microsoft.office.uc.dll file and/or the Microsoft.Lync.Model.dll files that are reference by the ContactInformation sample project are not compatible with the Lync client you have installed. It may be that you have the CU2 version of the SDK and
RTM or CU1 version of the client.
The client that you should run is
here
The SDK you should install is here
Be sure that the Microsoft.Lync.Model.dll that is referenced in the sample project is the assembly that is installed with the SDK. This is found in the C:\Program Files (x86)\Microsoft Office 2013\LyncSDK\Assemblies\Desktop folder.
John Austin Senior Programming Writer Microsoft

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Hi HakonRamanujan,
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the survey.

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Max.

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System.InvalidCastException error

Hi,
I have a form with a matrix and an import button. Users can import records from a text file into a user defined table. After the import into table is complete, the form is refreshed with records from the table. It all works fine when there are only a few records. But if it takes longer to import, I get the following error multiple times during form refresh.
System.InvalidCastExcpet: QueryInterface for interfaceSAPbouiCOM.itemEvent failed at SAPbouiCOM.ItemEventClass.Get_FormUID
This happens even if the focus is on my form. If I switch to another application, I get this error even if the I import only a few records.
All the records get imported, the error is only during form refresh.
Can anybody help? Thanks in advance.
Thanks,
Aparna

Hi Gianluigi,
Sorry for not posting an update in the past month. I have been trying quite a few things to resolve this issue. I did try using the .Net Profiler but it was not of much use. The only message I get in the profiler is as follows:
Type: System.Runtime.InteropServices.COMException
Call: thrown
Type: System.InvalidCastException
Call: Thrown
I think the error is somehow related to UI API and window refresh. But I am not sure what it is. Interestingly, I get the error only while dealing with large data set.
Thanks,
Aparna

InvalidCastException on LyncClient.GetClient()

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