  There are two known approaches for quantizing the SU(2) Skyrme model, the
semiclassical and canonical quantization. The semiclassical approach does not
take into account the non-commutativity of velocity of quantum coordinates and
the stability of the semiclassical soliton is conveniently ensured by the
symmetry breaking term. The canonical quantum approach leads to quantum mass
correction that is not obtained in the semiclassical approach. In this letter
we argue that these two approaches are not equivalent and lead to different
results. We show that the resulting profile functions have the same asymptotic
behaviour, however their shape in the region close to the origin is different.
