i just figured it out.
go download the JAVA legacy client.
then go down and click java client. download that and then when you go into swiftkit use the "use rs client" button once downloaded and then it should work.
i noticed the last message on swiftkit was 2016 so i looked up when the nxt client came out and they came our around the same time and i noticed alot of stuff dropped java so i went and downloaded the old java one and boom works.