The AuthenticationController is provided to these from the AuthenticationView.

Author: JamesMBallard

uitools/import/Esri/ArcGISRuntime/Toolkit/ClientCertificateView.qml

@@ -22,7 +22,7 @@ import Qt.labs.platform as P
 
 Dialog {
     id: clientCertificateView
-    property AuthenticationController controller: AuthenticationController {}
+    property AuthenticationController controller: null
 
     title: qsTr("Client certificate requested")
 

uitools/import/Esri/ArcGISRuntime/Toolkit/OAuth2View.qml

@@ -24,7 +24,7 @@ import QtQuick.Window
 Dialog {
     id: oAuthView
 
-    property AuthenticationController controller: AuthenticationController {}
+    property AuthenticationController controller: null
 
     title: webView.title
 

uitools/import/Esri/ArcGISRuntime/Toolkit/SslHandshakeView.qml

@@ -22,7 +22,7 @@ import QtQuick.Layouts
 
 Dialog {
 
-    property AuthenticationController controller: AuthenticationController {}
+    property AuthenticationController controller: null
 
     title: qsTr("Untrusted Host")
 

uitools/import/Esri/ArcGISRuntime/Toolkit/UserCredentialsView.qml

@@ -23,7 +23,7 @@ import QtQuick.Layouts
 Dialog {
     id: userCredentialsView
 
-    property AuthenticationController controller: AuthenticationController {}
+    property AuthenticationController controller: null
 
     title: qsTr("Authentication required")