By creating a menu item in Joomla 2.5 an error may occur, if a menu item has the same "Menu Title" or "Alias" like a other created menu item. In this case the following error appears:
Save failed with the following error: Another menu item with the same parent has this alias
Solution:
1. Possibility: Check, if the entered "Menu Title" or "Alias" already used by a other menu item. You can check this in the Menu Manager.
Use the path: "Joomla 2.5 Administration" - "Menus" - "Menu Manager"
2. Possibility: Check, if a trashed menu item with the same "Menu Title" or "Alias" is still in the Joomla 2.5 Trash and has not been deleted.
Use the path: "Joomla 2.5 Administration" - "Menus" - "Menu Manager" and select the "Status" - "trashed" in the "Status Drop down Field", top right of the displayed menu item survey.
In our case, a menu item with the same "Menu Title" and "Alias" is in the Joomla 2.5 Trash. To delete it, check the menu item und push the "Empty trash Button", top right.
