changed error message for missing texture file

overviewer_core/textures.py

@@ -213,7 +213,7 @@ class Textures(object):
                 if verbose: logging.info("Found %s in '%s'", filename, path)
                 return open(path, mode)
 
-        raise IOError("Could not find the file `{0}'. You can either place it in the same place as overviewer.py, use --textures-path, or install the Minecraft client.".format(filename))
+        raise IOError("Could not find the file `{0}'. Try specifying the 'texturepath' option in your config file. Set it to the directory where I can find {0}.".format(filename))
 
     def load_image(self, filename):
         """Returns an image object"""