Index: core/units/helpers/file_helper.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- core/units/helpers/file_helper.php	(revision 15788)
+++ core/units/helpers/file_helper.php	(revision )
@@ -274,7 +274,7 @@
 			$result = true;
 
 			if (!file_exists($path) || !is_dir($path)) {
-				$parent_path = preg_replace('#(/|\\\)[^/\\\]+(/|\\\)?$#', '', $path);
+				$parent_path = preg_replace('#(/|\\\)[^/\\\]+(/|\\\)?$#', '', rtrim($path , '/\\'));
 				$result = $this->CheckFolder($parent_path);
 
 				if ($result) {
\ No newline at end of file