fix bug

build.gradle

@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-//  ext.kotlin_version = '1.1.51'
+  ext.kotlin_version = '1.1.51'
   repositories {
     jcenter()
     mavenCentral()
@@ -9,7 +9,7 @@ buildscript {
 //    classpath 'com.android.tools.build:gradle:2.3.3'
     classpath 'com.android.tools.build:gradle:2.2.2'
     classpath 'com.novoda:bintray-release:0.5.0'
-//    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     //        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7'
     //        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
     // NOTE: Do not place your application dependencies here; they belong
@@ -39,8 +39,8 @@ task clean(type: Delete) {
 ext {
   userOrg = 'arialyy'
   groupId = 'com.arialyy.aria'
-  publishVersion = '3.4.5'
-//  publishVersion = '1.0.3'  //FTP插件
+  publishVersion = '3.5.2_dev_2'
+//  publishVersion = '1.0.4'  //FTP插件
   repoName='maven'
   desc = 'android 下载框架'
   website = 'https://github.com/AriaLyy/Aria'