Add missing gson dependency

build.gradle

@@ -92,7 +92,8 @@ subprojects {
                    jflex: 'de.jflex:jflex:1.4.3',
                    jflex_plugin: 'co.tomlee.gradle.plugins:gradle-jflex-plugin:0.0.1',
                    proguard_gradle: 'net.sf.proguard:proguard-gradle:5.1',
-                   dx: 'com.google.android.tools:dx:1.7'
+                   dx: 'com.google.android.tools:dx:1.7',
+                   gson: 'com.google.code.gson:gson:2.3.1'
          ]
     }
 

smalidea/build.gradle

@@ -41,6 +41,7 @@ sourceSets.main.java.srcDir antlrOutput
 dependencies {
     compile project(':smali')
     compile depends.antlr_runtime
+    compile depends.gson
 
     antlr3 depends.antlr
 }