Dyld: Symbol not found


I had an old version ROOT installed and when installing other software that is linked to ROOT, the software worked. Then, I decided to update ROOT to a new version and I got this error:

dyld: Symbol not found: __ZN10TCanvasImp11ShowMembersER16TMemberInspectorPc
Referenced from: /users/minano/Desktop/psi46expert/./bin/psi46expert
Expected in: /Applications/root/lib/libCore.so
in /users/minano/Desktop/psi46expert/./bin/psi46expert
Trace/BPT trap

Everything is on a MAC Snow Leopard 10.6.8.
Could you help me to solve that error or give me a hint to manage it?
Thank you.