How to resolve Error during execution of ssis package (Integration b/w sybase and sql server) in a windows services with ERROR Code 0x80131501

Sybase.Data.AseClient.AseException: Login failed.

   at Sybase.Data.AseClient1.AseConnection.Open()
   at Sybase.Data.AseClient.AseConnection.Open()
   at Microsoft.SqlServer.Dts.Runtime.ManagedHelper.GetManagedConnection(String assemblyQualifiedName, String connStr, Object transaction)
   at Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManager100.AcquireConnection(Object pTransaction)
   at Microsoft.SqlServer.Dts.Pipeline.DataReaderSourceAdapter.AcquireConnections(Object transaction)
   at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostAcquireConnections(IDTSManagedComponentWrapper100 wrapper, Object transaction)
component "ADO NET Source" (1) failed validation and returned error code 0x80131501.

One or more component failed validation.

There were errors during task validation.