CCL: Wrong symmetry

From: "Reza Shojaei" <shojaei81|-|gmail.com>
Subject: CCL: Wrong symmetry
Date: Wed, 16 Apr 2014 19:39:40 -0400

 Sent to CCL by: "Reza  Shojaei" [shojaei81:-:gmail.com]
 Dear All,
 I have optimized Aniline (C6H5NH2) using different methods and basis sets, and
 despite Aniline is a single conformer compound but my optimization falls on a
 transition state with negative frequency.
 What does it mean? Does Aniline have another conformer?!!
 How can I solve this problem in G09? It must have no negative frequency.