Adding interests when there are no conversations

[KevinWorkman]

I think Priyanka saw a bug where adding an interest before there were conversations caused an error?

[TheMkrage]

Will look into it

[TheMkrage]

Couldn't find any errors.
WHAT I DID:

• started with no json file
• u-add K
• u-sign-in K
• i-add-convo FJDAKFDAJKDFJA
• Console returned: "Oh no! I can't find that convo! Try again"
  which is expected behavior. Lemme know if there is some other case that throws an error