diff --git a/playground/build.gradle b/playground/build.gradle
--- a/playground/build.gradle
+++ b/playground/build.gradle
@@ -102,6 +102,10 @@ task copyModules(type: Copy) {
     from npm.module("requirejs/require.js")
 }
 
+npmPublish {
+    enabled = false
+}
+
 task copyApp(type: Copy) {
     dependsOn assemble
     from typescript.assemblyDir