[Jackie Chen]

Hi Foamers

I try to use OF 2.3.0 the tutorial file propeller to simulate the flow around tidal turbine.
When I try to type moveDynamicMesh-checkAMI
It shows

--> FOAM FATAL ERROR: 

    request for volVectorField U from objectRegistry region0 failed
    available objects of type volVectorField are
0()

    From function objectRegistry::lookupObject<Type>(const word&) const
    in file /home/opencfd/OpenFOAM/OpenFOAM-2.3.0/src/OpenFOAM/lnInclude/objectRegistryTemplates.C at line 198.

FOAM aborting

#0  Foam::error::printStack(Foam::Ostream&) in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#1  Foam::error::abort() in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#2   Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField,  Foam::volMesh> const&  Foam::objectRegistry::lookupObject<Foam::GeometricField<Foam::Vector<double>,  Foam::fvPatchField, Foam::volMesh> >(Foam::word const&) const  in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libdynamicFvMesh.so"
#3  Foam::Q::execute() in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libutilityFunctionObjects.so"
#4   Foam::OutputFilterFunctionObject<Foam::Q>::execute(bool) in  "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libutilityFunctionObjects.so"
#5  Foam::functionObjectList::execute(bool) in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#6  Foam::Time::run() const in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#7  Foam::Time::loop() in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#8  
 in "/opt/openfoam230/platforms/linux64GccDPOpt/bin/moveDynamicMesh"
#9  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#10  
 in "/opt/openfoam230/platforms/linux64GccDPOpt/bin/moveDynamicMesh"
Aborted (core dumped)

ANyone can figure out this? Thanks in advance