bug using regex

[srirams]

Using replace and regex I get the following errors:

Traceback (most recent call last):
File "MainWindow__init__.pyo", line 711, in show_preview
File "MainWindow__init__.pyo", line 1010, in on_preview_button
File "renamer__init__.pyo", line 72, in preview
File "renamer\preview.pyo", line 230, in generate_names
File "renamer\preview.pyo", line 308, in run
File "operations\move.pyo", line 186, in rename_item
File "operations\regExpr.pyo", line 139, in create_regex
NameError: global name 'app' is not defined

Traceback (most recent call last):
File "MainWindow__init__.pyo", line 711, in show_preview
File "MainWindow__init__.pyo", line 1010, in on_preview_button
File "renamer__init__.pyo", line 72, in preview
File "renamer\preview.pyo", line 230, in generate_names
File "renamer\preview.pyo", line 308, in run
File "operations\replace.pyo", line 100, in rename_item
NameError: global name 'app' is not defined

Looks like a missing "import app"...