TTree::Process( Proxy ) + AClic: error in dictionary

Dear experts,

I am using ROOT 5.34/09 with g++ 4.8.2 .
I want to run a TSelector-based analysis using the auto-generated proxy with TTree::MakeProxy.

The generated proxy looks fine, and if I run a do-nothing analysis ( the analysis_Process and all other TSelector-like member functions are empty), everything is fine; but if I try to copy-and-paste an already existing analysis inside those functions, I obtain a huge list of errors regarding the dictionary generation that I never encountered before; you can see an example below:

all of these errors are related to the overload of operator>>, operato<< or member G__ateval:

have you ever seen anything like this? do you have any suggestion?
thank you very much in advance.