diff --git a/ios/Podfile b/ios/Podfile
index 264db98d..5495f0ca 100644
--- a/ios/Podfile
+++ b/ios/Podfile
@@ -48,7 +48,7 @@ post_install do |installer|
                  'PERMISSION_CAMERA=1',
                  'PERMISSION_MICROPHONE=1',
                  ## dart: PermissionGroup.calendar
-                 'PERMISSION_EVENTS=1',
+                 'PERMISSION_EVENTS_FULL_ACCESS=1',
                  ## dart: PermissionGroup.reminders
                  'PERMISSION_REMINDERS=1',
               ]
diff --git a/ios/Runner/Info.plist b/ios/Runner/Info.plist
index 65a0bf75..43474d39 100644
--- a/ios/Runner/Info.plist
+++ b/ios/Runner/Info.plist
@@ -59,6 +59,10 @@
 	<string>This App requires access to Bluetooth to connect blood pressure &amp; blood sugar devices with the app to analyze the data.</string>
 	<key>NSCalendarsUsageDescription</key>
 	<string>This app requires calendar access to set reminders for Virtual &amp; Normal Appointments.</string>
+	<key>NSCalendarsWriteOnlyAccessUsageDescription</key>
+	<string>This app requires calendar access to set reminders for Virtual &amp; Normal Appointments.</string>	
+	<key>NSCalendarsFullAccessUsageDescription</key>
+	<string>This app requires calendar access to set reminders for Virtual &amp; Normal Appointments.</string>
 	<key>NSCameraUsageDescription</key>
 	<string>This app requires camera access to enable virtual consultation between patient &amp; doctor</string>
 	<key>NSContactsUsageDescription</key>
diff --git a/lib/main.dart b/lib/main.dart
index 44be8712..1842c15e 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -161,7 +161,7 @@ class _MyApp extends State<MyApp> {
                   builder: (_, mchild) {
                     return MediaQuery(
                       data: MediaQuery.of(context).copyWith(
-                        textScaleFactor: 1.0,
+                        textScaler: TextScaler.linear(1.0),
                       ), //set desired text scale factor here
                       child: mchild!
                     );
diff --git a/lib/pages/BookAppointment/book_reminder_page.dart b/lib/pages/BookAppointment/book_reminder_page.dart
index 6a124fd2..6615f092 100644
--- a/lib/pages/BookAppointment/book_reminder_page.dart
+++ b/lib/pages/BookAppointment/book_reminder_page.dart
@@ -82,10 +82,10 @@ class _BookReminderPageState extends State<BookReminderPage> {
               widget.docObject.projectName!,
               null,
               null,
-              widget.docObject.nationalityFlagURL!,
-              widget.docObject.doctorRate!,
+              widget.docObject.nationalityFlagURL ?? "",
+              widget.docObject.doctorRate?? 0,
               null,
-              widget.docObject.noOfPatientsRate!,
+              widget.docObject.noOfPatientsRate ?? 0,
               "",
             ),
             isNeedToShowButton: false,
diff --git a/lib/pages/BookAppointment/widgets/reminder_dialog.dart b/lib/pages/BookAppointment/widgets/reminder_dialog.dart
index a68fbfa4..91c04833 100644
--- a/lib/pages/BookAppointment/widgets/reminder_dialog.dart
+++ b/lib/pages/BookAppointment/widgets/reminder_dialog.dart
@@ -35,7 +35,6 @@ showReminderDialog(BuildContext context, DateTime dateTime, String doctorName, S
     }
   } else {
     if (await Permission.calendarFullAccess.request().isGranted) {
-      print(await Permission.calendarFullAccess.request().isGranted);
       _showReminderDialog(context, dateTime, doctorName, eventId, appoDateFormatted, appoTimeFormatted,
           onSuccess: onSuccess, title: title ?? "", description: description ?? "", onMultiDateSuccess: onMultiDateSuccess ?? (int) {});
     }
diff --git a/lib/pages/landing/landing_page.dart b/lib/pages/landing/landing_page.dart
index 02850e7c..13fa4e23 100644
--- a/lib/pages/landing/landing_page.dart
+++ b/lib/pages/landing/landing_page.dart
@@ -641,7 +641,7 @@ class _LandingPageState extends State<LandingPage> with WidgetsBindingObserver {
       projectViewModel.analytics.setUser(AuthenticatedUser());
     }
     if (Platform.isIOS) {
-      String voipToken = await sharedPref.getString(APNS_TOKEN);
+      String? voipToken = await sharedPref.getString(APNS_TOKEN?? "");
       //  getOneSignalVOIPToken(voipToken);
     }
   }
diff --git a/lib/uitl/location_util.dart b/lib/uitl/location_util.dart
index 402d9f57..a40277c7 100644
--- a/lib/uitl/location_util.dart
+++ b/lib/uitl/location_util.dart
@@ -128,8 +128,8 @@ class LocationUtils {
                   heading: 0.0,
                   speed: 0.0,
                   speedAccuracy: 1,
-                  altitudeAccuracy: 0,
-                  headingAccuracy: 0,
+                    altitudeAccuracy: 0,
+                   headingAccuracy: 0,
                   // Added by Aamir
                 ),
               );