adding the navigation dependecies

app/build.gradle

@@ -4,9 +4,11 @@ apply plugin: 'kotlin-android'
 
 apply plugin: 'kotlin-android-extensions'
 
+apply plugin: 'androidx.navigation.safeargs.kotlin'
+
 android {
     compileSdkVersion 29
-    buildToolsVersion "29.0.1"
+    buildToolsVersion "29.0.2"
     defaultConfig {
         applicationId "de.ccc.events.badge.card10"
         minSdkVersion 21
@@ -40,4 +42,7 @@ dependencies {
     implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
     implementation 'androidx.work:work-runtime-ktx:2.2.0'
     implementation 'org.apache.commons:commons-compress:1.18'
+    implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
+    implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
+
 }

build.gradle

@@ -2,6 +2,8 @@
 
 buildscript {
     ext.kotlin_version = '1.3.40'
+    ext.nav_version = "2.2.0-alpha01"
+
     repositories {
         google()
         jcenter()
@@ -10,6 +12,9 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.4.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
+
+
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }