How to move svn folder one level up

I need to move svn folder to one level up and keep all history

All files and directories from https://myserver.com/svn/Project/trunk/ into https://myserver/svn/Project/

I use a command:

svn move https://myserver.com/svn/Project/trunk/ https://myserver/svn/Project/

but it says:

svn: Cannot move path 'https://myserver.com/svn/Project/trunk/' into itself

Who knows how can I resolve that problem? Thanks!