FP2 and FP3 installation error on Solaris

Hi all,I’am installing Domino 8.5.1 on solaris sparc 10.

And i’am getting this error when i try to install fix packs. it happens with FP2 and FP3 :

"You must create the environment variable NUI_NOTESDIR as path of the

directory\nthat contains notes/latest. E.g., for the default

path /opt/lotus/notes/latest \n NUI_NOTESDIR=/opt/lotus\n export

NUI_NOTESDIR"

And if add this environment variable it says that this not a valid domino directory !!!

Any help please !

Regards

E.H.Y