Done Mym Portal

i cant build a mym portal . I build a nether portal with a sign below and in first line on sign I write 'Portal'.
When i press the button for redstone signal ... nothing .. and in chat says "Error, portal blocked"

 

You need to place the sign under 1 of the bottom blocks , not the blocks to the side.

xxxx
x x
x x
x x
xxxx
^^ Sign goes here (middle two blocks)

 

YouTube video - better than ascii art

 

Fixed , there were in the farmworld.