error in blocks?
 

Hello,
I'm to try meshing an airfoil, but I have the next error in my blockMeshDict

PID : 6299
Case :
nProcs : 1
SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Creating block mesh from
"/home/bego/OpenFOAM/bego-1.6/proyecto/constant/polyMesh/blockMeshDict"

ill defined primitiveEntry starting at keyword 'blocks' on line 272 and ending at line 608
file: /home/bego/OpenFOAM/bego-1.6/proyecto/constant/polyMesh/blockMeshDict at line 608.
From function primitiveEntry::readEntry(const dictionary&, Istream&)
in file db/dictionary/primitiveEntry/primitiveEntryIO.C at line 210.
FOAM exiting

My teacher say that it's an error of vertices, but I think that it's a blocks error
Can any help me?

Thanks