KeyguardTestActivity has stopped
So, i'm editing a stock rom retail BR 4.4.2 of Moto X. I needed edit the SystemUI.apk for add a feature, and for this i should add a line in the AndroidManifest.xml, when i did all the modifications and install the rom, i get this message "KeyguardTestActivity has stopped". I have identified that the problem stay in the modification in the AndroidManifest.xml, and the "KeyguardTestActivity" is the app Keyguard.apk that is the lockscreen. I don't know why this don't work! I'm using the last apktool, i have installed the framework-res.apk of the stock rom! please help me
Respect is essential!