Please techraj provide some solution i also want to know that with who she is chating on facebook or whatsapp ???

that means your system doesn't have zipalign installed so you have to install it first use .... then install apktool ...

me also facing some problems. i applied all the step as he said in this "HAcking android device by sending a simple SMS" tutorial. Error : Meterpreter failed and my localhost is received a response from target device only when he start the manilulated app if target user close the app then connection died. :( Any solution for continuous connection.???