A remark on the fractional order differential equations

An important solving method was presented in article (Demirci and Ozalp, 2012) which shows that: ”The exact solution of a fractional order differential equation can be obtained by means of the solution of an integer order differential equation”. This article and its method have been cited by many researchers. In this paper, we will show that this solving method is wrong, and then we use several counter-examples to disconfirm this solving method.