From 765dc6d86aef41da645bc36fc4e906d80c838acb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joachim=20Sch=C3=B6berl?= <joachim.schoeberl@tuwien.ac.at>
Date: Tue, 16 Jul 2019 08:06:05 +0200
Subject: [PATCH] catch tcl-exception

---
 python/gui.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/python/gui.py b/python/gui.py
index 35fa1f34..959b2fd3 100644
--- a/python/gui.py
+++ b/python/gui.py
@@ -19,4 +19,8 @@ def StartGUI():
         pass
     
 if not netgen.libngpy._meshing._netgen_executable_started:
-    StartGUI()
+    # catch exception for building html docu on server without display
+    try:  
+        StartGUI()
+    except:
+        pass