1 android {
2         ...
3     lintOptions {  
4         checkReleaseBuilds false
5         abortOnError false
6 
7     }
8 }

allprojects {
            ...
    gradle.projectsEvaluated {
        tasks.withType(JavaCompile) {
            options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
        }
    }
}