I'm not able to build build my app

Hey guy’s , I’m facing few problem since last week still am not able to build my app , while try to build my app showing an error , error message is given below

Checking Java JDK and Android SDK versions
ANDROID_SDK_ROOT=undefined (recommended setting)
ANDROID_HOME=C:\Users\AppDeveloper\AppData\Local\Android\Sdk (DEPRECATED)
Could not find an installed version of Gradle either in Android Studio,
or on your system to install the gradle wrapper. Please include gradle
in your path, or install Android Studio

Please help me out
Thanks in advance