[DiegoNaval]

HI all,
I have a little problem with a volScalarField, I have create that field in a class where is not defined the runTime object, but I want create a volScalarField that than I fill in that way:
__________________________________________________ ______
volScalarField alfa
(
IOobject
(
"alfa",
fileName(),
mesh_,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh_
);

forAll(cells, i)
{
label lab=cells[i];
if(IntCell_[lab])
alfa.internalField()[lab]=1;
else
alfa.internalField()[lab]=0;
}
__________________________________________________ ______
All can be compiled but when I run the solver that use that class I have that error:
__________________________________________________ ______
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.7.x |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 1.7.x-a654f2c8b4fb
Exec : MYMRFSimpleFoam
Date : Nov 17 2010
Time : 15:30:43
Host : salaria
PID : 11695
Case : /home/diego/OpenFOAM/diego-1.7.x/run/VerificaMRF/SimplePropeller
nProcs : 1
SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).

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

Create mesh for time = 0

Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting RAS turbulence model kOmegaSST
kOmegaSSTCoeffs
{
alphaK1 0.85034;
alphaK2 1;
alphaOmega1 0.5;
alphaOmega2 0.85616;
gamma1 0.5532;
gamma2 0.4403;
beta1 0.075;
beta2 0.0828;
betaStar 0.09;
a1 0.31;
c1 10;
}


Starting time loop

Time = 1



--> FOAM FATAL ERROR:
NO_READ specified for read-constructor of object alfa of class IOobject

From function regIOobject::readStream()
in file db/regIOobject/regIOobjectRead.C at line 46.

FOAM aborting

#0 Foam::error:rintStack(Foam::Ostream&) in "/home/diego/OpenFOAM/OpenFOAM-1.7.x/lib/linux64GccDPOpt/libOpenFOAM.so"
#1 Foam::error::abort() in "/home/diego/OpenFOAM/OpenFOAM-1.7.x/lib/linux64GccDPOpt/libOpenFOAM.so"
#2 Foam::regIOobject::readStream() in "/home/diego/OpenFOAM/OpenFOAM-1.7.x/lib/linux64GccDPOpt/libOpenFOAM.so"
#3 Foam::regIOobject::readStream(Foam::word const&) in "/home/diego/OpenFOAM/OpenFOAM-1.7.x/lib/linux64GccDPOpt/libOpenFOAM.so"
#4 Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::GeometricField(Foam::IOobject const&, Foam::fvMesh const&) in "/home/diego/OpenFOAM/diego-1.7.x/applications/bin/linux64GccDPOpt/MYMRFSimpleFoam"
#5 Foam::MRFZone::correctVelocityEquation(Foam::fvMat rix<Foam::Vector<double> >&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh>&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh>&) const in "/home/diego/OpenFOAM/diego-1.7.x/applications/bin/linux64GccDPOpt/MYMRFSimpleFoam"
#6 Foam::regIOobject::writeObject(Foam::IOstream::str eamFormat, Foam::IOstream::versionNumber, Foam::IOstream::compressionType) const in "/home/diego/OpenFOAM/diego-1.7.x/applications/bin/linux64GccDPOpt/MYMRFSimpleFoam"
#7 main in "/home/diego/OpenFOAM/diego-1.7.x/applications/bin/linux64GccDPOpt/MYMRFSimpleFoam"
#8 __libc_start_main in "/lib/libc.so.6"
#9 Foam::regIOobject::writeObject(Foam::IOstream::str eamFormat, Foam::IOstream::versionNumber, Foam::IOstream::compressionType) const in "/home/diego/OpenFOAM/diego-1.7.x/applications/bin/linux64GccDPOpt/MYMRFSimpleFoam"
Aborted
__________________________________________________ ______

Someone have an idea on which is the problem?