change buld files

app/build.gradle

 apply plugin: 'com.android.application'
 
+
 android {
     compileSdkVersion 23
     buildToolsVersion "23.0.1"

build.gradle

@@ -6,10 +6,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:1.5.0'
-        //classpath 'com.neenbedankt.gradle.plugins:android-apt:1.4'
-
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'
     }
 }
 

progresshud/build.gradle

 apply plugin: 'com.android.library'
+apply plugin: 'com.github.dcendents.android-maven'
+group='com.github.zihan'
 
 android {
     compileSdkVersion rootProject.ext.compileSdkVersion