Index: wflow-py/mkversion.py
===================================================================
diff -u -r8baae3166e06d7602585c17aac8a1d012aef06e6 -r5eaf57c6016b37b0f167dc2dbfb4ed3f1c2ba72d
--- wflow-py/mkversion.py	(.../mkversion.py)	(revision 8baae3166e06d7602585c17aac8a1d012aef06e6)
+++ wflow-py/mkversion.py	(.../mkversion.py)	(revision 5eaf57c6016b37b0f167dc2dbfb4ed3f1c2ba72d)
@@ -2,8 +2,12 @@
 import datetime
 
 import subprocess
-branch = subprocess.check_output('git rev-parse --abbrev-ref HEAD', shell=True).strip()
 
+try:
+    branch = subprocess.check_output('git rev-parse --abbrev-ref HEAD', shell=True).strip()
+except:
+    branch = 'master'
+
 vers='1'
 nrversion = '1.0'