Fixes

build.gradle

@@ -1,13 +1,12 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-	ext.kotlin_version = '1.4.31'
 	repositories {
 		google()
 		jcenter()
 	}
 	dependencies {
 		classpath 'com.android.tools.build:gradle:4.1.2'
-		classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+		classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.31"
 
 		// NOTE: Do not place your application dependencies here; they belong
 		// in the individual module build.gradle files