Upgrade gradle for Android studio 4

app/build.gradle

@@ -15,7 +15,7 @@ repositories {
 android {
 
     compileSdkVersion 29
-    buildToolsVersion "28.0.3"
+    buildToolsVersion "29.0.2"
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
@@ -52,7 +52,7 @@ android {
                     def date = new Date()
                     def formattedDate = date.format('yyMMdd_HHmm')
                     def appName = "PokerAnalytics"
-                    def buildType = variant.variantData.variantConfiguration.buildType.name
+                    def buildType = variant.buildType.name
                     def newName
                     if (buildType == 'debug'){
                         newName = "${appName}_${defaultConfig.versionName}(${defaultConfig.versionCode})_${formattedDate}_debug.apk"

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.4'
+        classpath 'com.android.tools.build:gradle:4.0.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'io.realm:realm-gradle-plugin:5.15.2'
         classpath 'com.google.gms:google-services:4.3.4'

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Wed May 13 12:21:50 CEST 2020
+#Mon Oct 05 18:40:01 CEST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip