--- a/artifacts/src/main/resources/messages.properties	Mon Jul 30 13:40:33 2018 +0200
+++ b/artifacts/src/main/resources/messages.properties	Mon Jul 30 14:25:18 2018 +0200
@@ -568,6 +568,7 @@
 km.not.found = Cannot find km.
 cannot.create.wq.relation = Cannot create W/Q relation.
 cannot.create.index.q.relation = Cannot create index/Q relation.
+cannot.find.q.for.w = Cannot find Q for W = {0,number,#.##}.
 
 w.w.qkm1.failed = Calculating Q for WST index {0,number,#.##} failed.
 w.w.wkm1.failed = Calculating W for Q = {0,number,#.##} /  WST index {1,number,#.##} failed.