symbol lookup error
 

Hello,

I am developing a boundary condition based on turbulentTemperatureCoupledBaffle and compiling with The code compiles, but when I run it, I immediately get the following error:
But, when I list the symbols in the library, this symbol is present:
Any thoughts on what could be going on here?

Thank you,

Mirko

Whenever I get weird, inconsistent errors like that, I try recompiling OpenFOAM. That's my shot in the dark.

Your symbol might be present, but it is still undefined in that library.
The capital letter U in front of the symbol stands for Undefined...

'man nm' is your friend here.

Martin

I was wondering what the `U' meant :-) I should have pursued it further.

Mirko

I think I understand what went wrong: I was overriding an OpenFOAM library with my own incomplete library.

I am adding a boundary condition derived from compressible::turbulentTemperatureCoupledBaffle. In Make/files, I specified as the destination $FOAM_USER_LIBBIN/libcompressibleTurbulenceModel.

Presumably, this prevented the $FOAM_LIBBIN/libcompressibleTurbulenceModel from linking.

Mirko

Dear Mirko,

If it prevented the lib from linking, how to relink it with your own lib?

Dear all,

I got a similar error like that today and it went away after fixing an error in the code. The error was forgetting to add the class name before the function name for some reimplemented virtual functions:

void className::functionName()

instead of just:

void functionName()


Hisham

Dear Mirko,
I now that it was in 2009...
but I have similar problem,
but even more strange...

I developed new BC as well,
but im my case everything run well on one processor, but If I want to run in parallel I got the same error as u had.

running decomposeParDic:

dlopen error : /home/user/OpenFOAM/user-2.3.0/platforms/linux64GccDPOpt/lib/customlibcompressibleTurbulenceModel.so: undefined symbol: _ZN4Foam9NamedEnumINS_22temperatureCoupledBase11KM ethodTypeELi4EE5namesE

any idea ?

thank you
MM

Any solution?
 

was anyone able to solve this problem?
I am stuck here and can't move forward.

Hi,
I got the same problem. Still looking for information to solve it.
Joe

Hi,
I'm not sure if it's exactly the same problem as I came across as the following link and I solved mine.
Good luck!
Joe

https://www.cfd-online.com/Forums/op...kup-error.html

Hi All,


In order to access the mesh information add the follwoing lines in my own library :


const objectRegistry& db();
const volVectorField& U = db().lookupObject<volVectorField>("U");
const fvMesh & mesh = U.mesh();

forAll ( etat, cellI) //loop through cell centres
{

etat[cellI]=mesh.C()[cellI].y();

if ( etat[cellI]< 0.048).....




But because of the
const objectRegistry& db();
const volVectorField& U = db().lookupObject<volVectorField>("U");
const fvMesh & mesh = U.mesh();

when I run it, it shows me error :

symbol lookup error:........................

undefined symbol: _ZN4Foam15viscosityModels2dbEv

Does anybody can help me?




Thanks

I solved the problem by removing the following lines


const objectRegistry& db();
const volVectorField& U = db().lookupObject<volVectorField>("U");
const fvMesh & mesh = U.mesh();

And just write the following line:
const fvMesh& mesh = U_.mesh();

I have faced the similar type of issue. Libraries need to be compiled correctly. Check the file and options of Make folder. In my case, the libraries were not linked. Hope it helps.

I'm trying to implement a similar thing and had the same code as you first used. I've tried using the same change but get the following error:

Did you receive this error? And how do you allow access to U_? Thanks