couldn't install on usb storage or sd card- no sd card

[AC Question]

whenever I download a purchased app, it says "couldn't install on usb storage or sd card', I don't know what to do as I don't have an SD card,

 

[B. Diddy]

I know this answer doesn't directly address your issue, but I would just go out an buy a cheap SD card. You can probably get a 4 GB or 8 GB card these days for a couple of bucks, maybe $5 at the most.