Error on install "...Error building Admin Menus"

I received this error when attempting to install CP in Joomla 2.5.3

"Another menu item with the same parent has this alias
Error building Admin Menus"

I did have a previous install problem... I tried to install in incompatible version. I uninstalled all the items and have attempted re-installs with the correct version but Custom Properties will not appear in the Components menu.

What happened? How can I fix this.

Thanks.

It's hard to say what happened. Anyway, according to the error message, there are issues with menu items.
I'd check the DB table #__menu to see if there are leftovers of the botched Custom Properties installation.

Thanks!!! that fixed the problem

I'm having the same problem, could you please explain what you mean by DB table #__menu? because I need to fix this urgently

Thanks

Nevermind, I figured it out

You beat me to it. Hopefully the problem has been solved.