X:\Sopno Pay\app\src\main\AndroidManifest.xml:76: Error: This class should provide a default constructor (a public constructor with no arguments) (com.sms.sopnopay.NetworkChangeReceiver) [Instantiatable] ~~~~~~~~~~~~~~~~~~~~~~ Explanation for issues of type "Instantiatable": Activities, services, broadcast receivers etc. registered in the manifest file (or for custom views, in a layout file) must be "instantiatable" by the system, which means that the class must be public, it must have an empty public constructor, and if it's an inner class, it must be a static inner class. If you use a custom AppComponentFactory to instantiate app components yourself, consider disabling this Lint issue in order to avoid false positives. 1 errors, 0 warnings