It seems that you are using Keil. Pleas add "--cpu Cortex-M0+" to the first line of the generated Scatter file of the ProcessorExpert (ProcessorExpert.scf). If the problems still exists, I think it is better also check with Keil support: http://www.keil.com/support/
In Iar 6.5 The problem has been resolved , but in the MDK4.7 in question , namely the question of this topic is still not resolved, but also invited experts to help solve