I am trying to run "laminar channel flow in fluid dynamics from model example and tutorial file'. Here, I used cfdtool to run this tutorial. I would like to use openfoam solver. So, After making geometry, grid, equation and boundary step, I do the solver. Here I choose openfoam solver. The program response below the picture. So I visited the cfdtool.com and upgraded and try again.Program response like this . How to solve this problem.