Hi i have a question about this game situation. involves Doc aphra, battle droid and Separatist landing craft.

The battle droid have the trait droid.

The separatist landing craft allows me to pay 2 to add into play a battle droid.

Aphra allows me to pay one less for the first droid each turn.

So can i resolve the SLC special side and pay only 1 resource instead 2 to add a battle droid at my side???

thanks in advance:)

Actually resolving a special, not playing a droid, so no.

Note that the text says "Add a Battle Droid" not "Play a battle droid"

Aphra is decrease the cost of the first droid you play by 1.

Tis' a game of keywords.

As above. You never play a droid in this case.