Emacs in Raspbian: warning error in Lxterminal

[pigreco erre]

Dear all,I hope that I am not disturbing you with my email  and I wish you a 
fantastic 2016.I write this problem in various forum but it seems that it is a 
strange problem.I try to explain you the questionI have a strange behaviour in 
my Raspberry Pi when I run Emacs in the bash LXterminal window.I obtain the 
message:
"** (Emacs: different number each run ): WARNING **: Error retrieving 
accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name 
org.a11y.Bus was not provided by any .service files".
It is strange because the program go on correctlyWhat do you suggest to tune 
this problem?Is it a configuration file to setting?I thank you to all in 
advanceWith my best regardsAlessandro