From 6cea9c59e89658e4d68c76a12e0a071486de0dc2 Mon Sep 17 00:00:00 2001
From: Aleksei S <a.sasin@ultimaker.com>
Date: Fri, 24 Nov 2017 11:59:09 +0100
Subject: [PATCH] Prevent crash handler exception

---
 cura/CrashHandler.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cura/CrashHandler.py b/cura/CrashHandler.py
index c6f94f0a80..fc12bff620 100644
--- a/cura/CrashHandler.py
+++ b/cura/CrashHandler.py
@@ -280,5 +280,7 @@ class CrashHandler:
         Application.getInstance().callLater(self._show)
 
     def _show(self):
-        self.dialog.exec_()
-        os._exit(1)
+        # When the exception is not in the fatal_exception_types list, the dialog is not created, so we don't need to show it
+        if self.dialog:
+            self.dialog.exec_()
+            os._exit(1)