Referencing initializer 'init(_:content:)' on 'ForEach' requires that 'Message' conform to 'Identifiable'

You should add .self

ForEach(chatManager.messages, , id: \.self) { message in

If your Message type has an id property, you just need to add the protocol conformance for Identifiable.

struct Message: Identifiable /* Other protocols here */ {
var id = UUID()

/*
Rest of implementation here...
*/
}

Get full answer in the othre thread.

For this, simply change as:

struct Message : Hashable { // <<-- CHANGE HERE
    let text: String
    let sender: String
}

And don't forget to close the thread by marking the correct answer.