Update gradle and IDE.

app/build.gradle

@@ -33,6 +33,7 @@ android {
     kotlinOptions {
         jvmTarget = '1.8'
     }
+    namespace 'me.zobrist.tichucounter'
 }
 
 dependencies {

app/src/main/AndroidManifest.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="me.zobrist.tichucounter">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application