Added extra text on error

aiplan4eu · Oct 16, 2023 · dc3e720 · dc3e720
1 parent be235c3
commit dc3e720
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/unified_planning/model/walkers/state_evaluator.py b/unified_planning/model/walkers/state_evaluator.py
@@ -79,5 +79,5 @@ def walk_fluent_exp(self, expression: "FNode", args: List["FNode"]) -> "FNode":
 
     def walk_param_exp(self, expression: "FNode", args: List["FNode"]) -> "FNode":
         raise UPProblemDefinitionError(
-            f"The StateEvaluator.evaluate should only be called on grounded expressions."
+            f"The StateEvaluator.evaluate should only be called on grounded expressions but is called on the parameter: {expression}"
         )