diff --git a/src/main/java/depends/relations/BindingResolver.java b/src/main/java/depends/relations/BindingResolver.java
index e05b901..f50638e 100644
--- a/src/main/java/depends/relations/BindingResolver.java
+++ b/src/main/java/depends/relations/BindingResolver.java
@@ -213,7 +213,7 @@ public class BindingResolver implements IBindingResolver{
 			return precendenceEntity;
 		}
 		if (nameIndex == -1) {
-			System.err.println("error");
+			System.err.println("No expected symbols: names"+Arrays.toString(names) +", index=" + nameIndex);
 			return null;
 		}
 		//If it is not an entity with types (not a type, var, function), fall back to itself