UPDATE: dependencies.

app/build.gradle

@@ -1,15 +1,15 @@
 apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
+//apply plugin: 'kotlin-android'
 
 android {
-    compileSdkVersion 24
+    compileSdkVersion 27
 
     defaultConfig {
         applicationId "com.jacky.launcher"
         minSdkVersion 17
-        targetSdkVersion 24
-        versionCode 1
-        versionName "1.0"
+        targetSdkVersion 27
+        versionCode 21
+        versionName "2.1"
     }
 
     signingConfigs {
@@ -35,18 +35,14 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    testCompile 'junit:junit:4.12'
-    compile 'com.android.support:support-v4:24.2.0'
-    compile "com.android.support:appcompat-v7:24.2.0"
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:support-v4:27.0.1'
+    implementation "com.android.support:appcompat-v7:27.0.1"
+    implementation 'com.android.support:leanback-v17:27.0.1'
+    implementation 'com.android.support:preference-leanback-v17:27.0.1'
 
-    compile 'com.android.support:leanback-v17:24.2.0'
-    compile 'com.android.support:preference-leanback-v17:24.2.0'
+    implementation 'fm.jiecao:jiecaovideoplayer:4.6.4'
+    implementation 'com.github.bumptech.glide:glide:3.4.+'
 
-    compile 'fm.jiecao:jiecaovideoplayer:4.6.4'
-
-    compile 'com.android.support:recyclerview-v7:24.2.0'
-    compile 'com.android.support:cardview-v7:24.2.0'
-    compile 'com.github.bumptech.glide:glide:3.4.+'
-//    compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
+//    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 }

build.gradle

@@ -1,14 +1,14 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.61'
+//    ext.kotlin_version = '1.3.30'
     repositories {
         google()
         jcenter()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.3.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+//        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 
@@ -21,4 +21,4 @@ allprojects {
 
 task clean(type: Delete) {
     delete rootProject.buildDir
-}
+}