[Rd] libR.so: cannot open shared object file

[gianluca.mastrantonio at yahoo.it]

Hi all

I have a R code that incorporates a C++ programm. I compiled the C++ 
code with the following:

R CMD SHLIB   Model.cpp -Wall funzioni.cpp

it seems to work fine but when i run the R code i get this error message

Error in dyn.load(paste(dir_func, "Model.so", sep = "")) :
   unable to load shared object '/lustre/work/uuu/RCpp/Model.so':
   libR.so: cannot open shared object file: No such file or directory

I don't know how to fix it.
The code is running on a cluster.

Thanks.