update gradle

app/build.gradle

@@ -1,12 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 31
 
     defaultConfig {
         applicationId "me.yoqi.android.yellowpage"
         minSdkVersion 16
-        targetSdkVersion 29
+        targetSdkVersion 31
         versionCode 1
         versionName "1.0"
 

build.gradle

@@ -4,10 +4,10 @@ apply from: "config.gradle"
 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.0.0"
+        classpath "com.android.tools.build:gradle:7.2.2"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -17,7 +17,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 

config.bak.gradle

@@ -2,8 +2,8 @@ ext {
     build = [
             applicationId   : "me.yoqi.android.yellowpage",
             minSdkVersion   : 16,
-            targetSdkVersion: 29,
-            compileSdkVersion:29,
+            targetSdkVersion 31
+            compileSdkVersion 31
             versionCode     :51,
             versionName     : "1.1.0",
     ]

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip