Print inside View in SwiftUI – Type ‘()’ cannot conform to ‘View’

I can assume that you have faced this error while trying to add a print statement in your SwiftUI View to debug your code.

I have got the same error: Type '()' cannot conform to 'View'

Then, I realized that SwiftUI won’t allow me to use print statements directly into my View.

So, I found a solution that can actually let me use print().

For example:

import SwiftUI

struct ContentView: View {
    @State private var number = 3
    var body: some View {
       print(number)
    }
}

I will get an error like this:

How to fix: Type ‘()’ cannot conform to ‘View’

Just use a variable or constant and print there just like this:

import SwiftUI

struct ContentView: View {
    @State private var number = 3
    var body: some View {
       let a = print(number)
    }
}

It should work fine but you will get a warning from Xcode: Constant 'a' inferred to have type '()', which may be unexpected

We can simply use an underscore to get rid of this warning: let _ = print(number)

Using a var or let will solve your problem.

In my case, it solved the error properly and I could use print statements in my View to debug my code.

But when I started writing this tutorial, I found another issue. If I use only print statement in my View then it will not print in my console debug.

To print it I need at least one element in my SwiftUI view.

This will work:

import SwiftUI

struct ContentView: View {
    @State private var number = 3
    var body: some View {
        let _ = print(number)
        Text("hi")

    }
}

Note: print will work fine in Button action.