What is wrong?

Hey Lucas. Welcome to Treehouse.

You are on the right track, but you have a couple issues with the 2nd line of code. First off, you can't interpolate a string. You can only interpolate variables. Here you are putting what should be the string "Hi there, " inside of parenthesis, which cannot be done.

Second, you are missing the backslash \ which lets the compiler know that you want to interpolate included variable into the string.

Below is the correct code for your reference. Make sure it all makes sense before moving on. If you're still unsure, I would recommend reviewing the video on String manipulation, as this as well as concatenation play a bigger role as you move forward.

let name = "Lucas" 
let greeting = "Hi there, \(name)"

Keep Coding! :)

You are using the interpolation to type Strings. This is not correct. You simply type "Hi there, " as a string and add the variable next to it. Here is my solution. I suggest you re watch a couple videos

let name = "Lucas"
let greeting = "Hi there, \(name)."

Hope it helps