diff --git a/fb2mobi.py b/fb2mobi.py
index 27d157f..aa4bfbd 100755
--- a/fb2mobi.py
+++ b/fb2mobi.py
@@ -417,6 +417,9 @@ def process(myargs):
         elif os.path.exists(os.path.join(application_path, myargs.config_file)):
             # found relative to program directory
             config_file = os.path.join(application_path, myargs.config_file)
+        else:
+            print('Unable to locate configuration file "{0}"'.format(myargs.config_file))
+            sys.exit(-1)
     else:
         config_file = os.path.join(os.path.expanduser('~'), 'fb2mobi' if version.WINDOWS else '.fb2mobi', config_file_name)
         if not os.path.exists(config_file):
diff --git a/synccovers.py b/synccovers.py
old mode 100644
new mode 100755
index 5999fe8..a382de5
--- a/synccovers.py
+++ b/synccovers.py
@@ -1,9 +1,11 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-import os, sys
-
+import os
+import sys
+import traceback
 import argparse
+
 import version
 
 from modules.mobi_split import mobi_read