Index: units/helpers/minifiers/minify_helper.php
===================================================================
--- units/helpers/minifiers/minify_helper.php	(revision 14949)
+++ units/helpers/minifiers/minify_helper.php	(working copy)
@@ -66,8 +66,14 @@
 			}
 
 			$files = $this->_getTemplatePaths( array_map('trim', explode('|', $files)) );
+
+			if ( !$files ) {
+				trigger_error('No files specified for compression.', E_USER_NOTICE);
+
+				return '';
+			}
+
 			$extension = pathinfo($files[0], PATHINFO_EXTENSION);
-
 			$save_as = isset($params['save_as']) ? $params['save_as'] : false;
 			$dst_file = $this->resourceFolder . DIRECTORY_SEPARATOR . ($this->debugMode ? 'd' : 'c') . '_';