fixed version no

@@ -32,7 +32,7 @@ if (keystorePropertiesFile.exists()) {
 }
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 31
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8

@@ -8,6 +8,7 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:7.0.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
     }
 }