problem with Tree.py while implementing VisitVarDecl() (TP02)

While trying to implement VisitVarDecl(), I get the following issue :

File "/home/etu/p1802733/Documents/Compilation/mif08-2025/MiniC/TypingAndInterpret/MiniCInterpretVisitor.py", line 25, in visitVarDecl id_list = self.visit(ctx.id_l) ^^^^^^^^^^^^^^^^^^^^ File "/home/etu/p1802733/mif08/venv/lib64/python3.12/site-packages/antlr4/tree/Tree.py", line 34, in visit return tree.accept(self) ^^^^^^^^^^^ AttributeError: 'function' object has no attribute 'accept'

Could you point me in the right direction to solve this ? I don't really understand why Tree.py raises an error of this kind.