Form Controls module error

I have not changed anything pertaining to this module. When I click on "Form Controls" under Development category, I get the following error:

The UniGrid definition file 'C:\kentico\CMS\App_Data\CMSModules\Form\UI\Grids\cms_formusercontrol\default.xml' was not found. Specify the path in the 'Grid path' property of the UI element on the Properties tab. You can enter only the name of the XML file and select an 'Object type' to load the XML definition file from ~/App_Data/{modulename}/UI/Grids/{objecttype}/fileName.xml. If you leave the grid path empty, the 'default.xml' name is used.

As far as I can tell, there never was a Form directory under \CMS\App_Data\CMSModules.

How can I fix this problem or get past it?

Thanks.