Fixing archetypes scenario.

Change-Id: Id3af37f1a7cd7880e5eeffb09b2af5c0925f13ef
diff --git a/tools/test/scenarios/archetypes.xml b/tools/test/scenarios/archetypes.xml
index ea84f7e..9dfd262 100644
--- a/tools/test/scenarios/archetypes.xml
+++ b/tools/test/scenarios/archetypes.xml
@@ -78,7 +78,8 @@
               exec="onos-app ${OCI} uninstall org.foo.app"/>
 
         <parallel var="${OC#}">
-            <step name="Archetypes-Check-Logs-${#}" exec="onos-check-logs ${OC#}"/>
+            <step name="Archetypes-Check-Logs-${#}" requires="Uninstall-App"
+                  exec="onos-check-logs ${OC#}"/>
         </parallel>
     </group>
 </scenario>