Unicode Issues with Attunity Drivers for Oracle

Hi -

I am trying to do a data transfer from SQL Server to Oracle . In the data transfer task , I am using "OLE DB source " for SQL Server and using Attunity Oracle destination for Oracle database.
Here is the source table in SQL Server .

CREATE TABLE [dbo].[t_test](
    [FVersion] [nvarchar](25) NULL,
    [R_ID] [nvarchar](15) NULL,    
    [TEM] [nvarchar](10) NULL
    
)

Here is the destiantion table in Oracle .

CREATE TABLE t_test(
    FVersion nvarchar2(25) NULL,
    R_ID nvarchar2(15) NULL,    
    TEM nvarchar2(10) NULL
)


When I run the data transfer task , I am getting the following message . Please advise.



Error at Data Flow Task [OLE DB Source [1]]: Column "FVersion" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Source [1]]: Column "R_ID" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Source [1]]: Column "TEM" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [SSIS.Pipeline]: "component "OLE DB Source" (1)" failed validation and returned validation status "VS_ISBROKEN".

Error at Data Flow Task [SSIS.Pipeline]: One or more component failed validation.

Error at Data Flow Task: There were errors during task validation.

 (Microsoft.DataTransformationServices.VsIntegration)

------------------------------
Program Location:

   at Microsoft.DataTransformationServices.Project.DataTransformationsPackageDebugger.ValidateAndRunDebugger(Int32 flags, DataWarehouseProjectManager manager, IOutputWindow outputWindow, DataTransformationsProjectConfigurationOptions options)
   at Microsoft.DataTransformationServices.Project.DataTransformationsProjectDebugger.LaunchDtsPackage(Int32 launchOptions, ProjectItem startupProjItem, DataTransformationsProjectConfigurationOptions options)
   at Microsoft.DataTransformationServices.Project.DataTransformationsProjectDebugger.LaunchActivePackage(Int32 launchOptions)
   at Microsoft.DataTransformationServices.Project.DataTransformationsProjectDebugger.LaunchDtsPackage(Int32 launchOptions, DataTransformationsProjectConfigurationOptions options)
   at Microsoft.DataTransformationServices.Project.DataTransformationsProjectDebugger.Launch(Int32 launchOptions, DataTransformationsProjectConfigurationOptions options)