From 806a199bb348c1a289f45e40317fcf73ef47e865 Mon Sep 17 00:00:00 2001
From: EnisOzer <enis.ozer@ug.bilkent.edu.tr>
Date: Wed, 20 Oct 2021 18:46:02 +0300
Subject: [PATCH] fix crashing problem

---
 src/MaterialManager.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/MaterialManager.py b/src/MaterialManager.py
index bdfbaa2..24da202 100644
--- a/src/MaterialManager.py
+++ b/src/MaterialManager.py
@@ -25,4 +25,11 @@ def changeMaterial(self, material) -> bool:
         return self._announceMaterial(returnText)
 
     def _announceMaterial(self, text: str) -> bool:
-        return self.announcer(text)
+        returnValue = False
+        try:
+            returnValue = self.announcer(text)
+        except:
+            print("Announcement of material type is failed.")
+            returnValue = False
+        finally:
+            return returnValue