[cliff]

Hi Foamers, while running a viscoelastic tutorial from viscoelasticfluidfoam solver i came up with this error
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.3.1 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 2.3.1-bcfaaa7b8660
Exec : blockMesh
Date : Jan 28 2015
Time : 20:14:15
Host : "sepinood-Inspiron-N5010"
PID : 27458
Case : /opt/openfoam231/tutorials/viscoelastic/viscoelasticFluidFoam/DCPP/constant/polyMesh
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time



--> FOAM FATAL IO ERROR:
cannot find file

file: /opt/openfoam231/tutorials/viscoelastic/viscoelasticFluidFoam/DCPP/constant/polyMesh/system/controlDict at line 0.

From function regIOobject::readStream()
in file db/regIOobject/regIOobjectRead.C at line 73.

FOAM exiting
i would appreciate your help. Thanks