How to use Identifiable in a ForEach loop - swiftui

Question

I am trying to iterate through an array of objects. This object is conforming to the Identifiable protocol. When using a ForEach loop, I get the following error: Type of expression is ambiguous without more context
I've included the block of code that is throwing the error. The error is specifically underlining \.name. Am I missing something?
Another note: This code worked in Xcode 11 Beta 2 but broke in Xcode 11 Beta 3...
struct ItemRow : View {
var categoryName:String
var items:[Item]
var body: some View {
VStack {
Text(self.categoryName)
.font(.title)
ScrollView(showsHorizontalIndicator: false) {
HStack (alignment: .top){
ForEach (self.items.identified(by: \.name)) { item in
NavigationLink(destination: ItemDetail(item: item)) {
ItemView(item: item)
.frame(width:300)
.padding(.trailing, 30)
}
}
}
}
}
}
}
Here is the Identifiable Object:
struct Item:Hashable, Codable, Identifiable {
var id:Int
var name:String
var category:Category
var description:String
}
(This code has been abstracted)

Answer 1

The first thing you need to know, is that when building views, compile errors can be very misleading. An error may show at the bottom of your code, but the cause may be at the top. I expect this will be fixed sometime in the future, but for the time being, you need to be careful.
Your code compiles just fine. Because of what I said about misleading errors, one brute but effective technique to debug the problem, is to start commenting bits of code until the error goes away. This will let pin point where the root of the problem may be.
A good way of updating your question is including enough code, so that people can reproduce the problem just by copy and paste into their own Xcode. It may be a lot of work for you, but I found that most of the time, you understand the problem during that process and you may not even need to post the question in the first place. Reducing an issue to its minimum expression, is also a great way of understading/fixing a problem.
UPDATE
Since you added more code, the error is showing where you would have not expected:
The ScrollView initialiser you were using, was deprecated. It now looks like this:
ScrollView(.horizontal, showsIndicators: false)
Also something that may potentially be a problem. You are using:
self.items.identified(by: \.name)
But don't you mean:
self.items.identified(by: \.id)
If so, then you do not need to use identified, since Item is already Identifiable and as such, it is already identified by id.
self.items

Answer 2

The issue was actually with the following line:
ScrollView(showsHorizontalIndicator: false)
ScrollView doesn't work like that anymore in Beta 3. The arguments now look something like this:
ScrollView(.horizontal, showsIndicators: false)
That will give you a horizontal scrolling view and will not show the scrolling indicators.