iOS fileImporter "No such file or directory" - ios

Question

I am trying to get users to import files from elsewhere in their iPad into my app using file importer. I am able to show the file browser dialog to choose the files. I am trying to copy the files into the app's cache before proceeding, and receive the error "no such file". I have extracted the code into a simple app to reproduce the errorand included it below. This code works as expected when I made a MacOS version. But the same code in an iOS app produces the error that there is no such file in the iPad (device attached).
Please advise as to where the error maybe.
import SwiftUI
import UniformTypeIdentifiers
struct ContentView: View {
#State var files : [String] = []
var body: some View {
VStack(alignment: .leading, spacing:0) {
FileImportButton(filePaths: $files)
.frame(width: 100, height: 100)
.overlay(Rectangle().stroke(lineWidth: 2))
Text(fileNames())
}
.frame(minWidth: 200, minHeight: 200)
}
func fileNames() -> String {
var out = ""
for name in files {
out = "\(out)\n\(name)"
}
return out
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
struct FileImportButton: View {
#Binding var filePaths : [String]
var types : [UTType] = [.image,.text,.rtf,.audio,.video,.url]
#State var showFileImport = false
var body: some View {
Button("Add\nAssets") {
showFileImport = true
}
.fileImporter(isPresented: $showFileImport, allowedContentTypes: types,
allowsMultipleSelection: true) { result in
do {
let urls = try result.get()
for url in urls {
if url.startAccessingSecurityScopedResource() {
let pathName = url.lastPathComponent
let folderURLs = FileManager.default.urls(
for: .cachesDirectory,
in: .userDomainMask
)
let toUrl = folderURLs[0].appendingPathComponent(pathName)
let data = try Data(contentsOf: url)
try data.write(to: toUrl, options: .atomic)
filePaths.append(pathName)
}
}
} catch {
print(error)
}
}
}
}