From 1c62a367d8c4a8f64895d237ee73d1cd6fcf1c4e Mon Sep 17 00:00:00 2001
From: David Kaufmann <david.kaufmann@student.tuwien.ac.at>
Date: Tue, 27 Nov 2018 03:14:44 +0100
Subject: [PATCH] better error message if instance fails

---
 camunda-overlay/camunda.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/camunda-overlay/camunda.py b/camunda-overlay/camunda.py
index 0706039..65ad271 100755
--- a/camunda-overlay/camunda.py
+++ b/camunda-overlay/camunda.py
@@ -86,6 +86,9 @@ def submit_terms(terms):
 
 def download_pdf():
     instances = get_current_process_instances()
+    if len(instances) == 0:
+        print ("Error: no running instance found.")
+        return
     instance = instances[0]['id']
     res = requests.get(CAMUNDA + 'process-instance/' + instance + '/variables')
     try:
-- 
2.43.0