Trouble in FSI
 

Hi,
I am using Ansys workbench for an fsi problem of a flexible plate oscillating in a flowing fluid. The console gives the following error just after the solution begins:
Exception encountered when the coupling service requested ChartableData->GetRootLevelName:Communication socket unexpectedly disconnected

Solver failure occurred during the run in the Transient Structural system.

What exactly does it mean and how do I get around it?