diff --git a/pomodoro_to_harvest.py b/pomodoro_to_harvest.py
index a8dc966..bc7bdf2 100644
--- a/pomodoro_to_harvest.py
+++ b/pomodoro_to_harvest.py
@@ -15,10 +15,14 @@ else:
 if settings.pomodoro_logfile():
     # This works for one file:
     timelog = pd.read_csv(settings.pomodoro_logfile())
-else:
+    if not timelog:
+        sys.exit("No logfile found at location specified for logfile.")
+elif settings.pomodoro_logpath():
     # For multiple files:
     path = settings.pomodoro_logpath()
     all_files = glob.glob(path + "*.csv")
+    if not all_files:
+        sys.exit("No folder at location specified for logpath.")
 
     li = []
 
@@ -27,6 +31,8 @@ else:
         li.append(df)
 
     timelog = pd.concat(li, axis=0, ignore_index=True)
+else:
+    sys.exit("You must set either a logfile (single CSV) or a logpath (folder containing CSVs) in your settings.ini to use this script.")
 
 if debug:
    imported = copy.deepcopy(timelog)