code not working

[sumitjain1]

The plugins device_id, firebase_auth use a deprecated version of the Android embedding. To avoid unexpected runtime failures, or future build failures, try to see if these plugins support the Android V2 embedding. Otherwise, consider removing them since a future release of Flutter will remove these deprecated APIs. If you are plugin author, take a look at the docs for migrating the plugin to the V2 embedding: https://flutter.dev/go/android-plugin-migration. This application is not configured to build on the web. To add web support to a project, run flutter create .. Launching lib\main.dart on Chrome in debug mode... Waiting for connection from debug service on Chrome... lib/src/ui/pages/dashboard.dart:97:8: Error: Type 'StaggeredTile' not found. List<StaggeredTile> _staggeredTiles() { ^^^^^^^^^^^^^ lib/src/ui/pages/dashboard.dart:98:10: Error: 'StaggeredTile' isn't a type. List<StaggeredTile> widgets = new List(); ^^^^^^^^^^^^^ lib/src/ui/pages/dashboard.dart:100:19: Error: The getter 'StaggeredTile' isn't defined for the class 'DashboardMainPanel'.

• 'DashboardMainPanel' is from 'package:geo_attendance_system/src/ui/pages/dashboard.dart' ('lib/src/ui/pages/dashboard.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named 'StaggeredTile'. widgets.add(StaggeredTile.extent(1, 210.0)); ^^^^^^^^^^^^^ lib/src/ui/pages/dashboard.dart:119:16: Error: The getter 'StaggeredGridView' isn't defined for the class 'DashboardMainPanel'.
• 'DashboardMainPanel' is from 'package:geo_attendance_system/src/ui/pages/dashboard.dart' ('lib/src/ui/pages/dashboard.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named 'StaggeredGridView'. child: StaggeredGridView.count( ^^^^^^^^^^^^^^^^^ lib/src/ui/pages/profile_page.dart:31:44: Error: The getter 'subhead' isn't defined for the class 'TextTheme'.
• 'TextTheme' is from 'package:flutter/src/material/text_theme.dart' ('/F:/flutter_windows_2.5.3-stable/flutter/packages/flutter/lib/src/material/text_theme.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named 'subhead'. style: Theme.of(context).textTheme.subhead, ^^^^^^^ lib/src/ui/pages/attendance_summary.dart:208:9: Error: No named parameter with the name 'markersBuilder'. markersBuilder: (context, date, events, holidays) { ^^^^^^^^^^^^^^ /F:/flutter_windows_2.5.3-stable/flutter/.pub-cache/hosted/pub.dartlang.org/table_calendar-3.0.3/lib/src/customization/calendar_builders.dart:82:9: Context: Found this candidate, but the arguments don't match. const CalendarBuilders({ ^^^^^^^^^^^^^^^^ lib/src/ui/pages/attendance_summary.dart:235:30: Error: The argument type 'DateTime' can't be assigned to the parameter type 'List'.
• 'DateTime' is from 'dart:core'.
• 'List' is from 'dart:core'. _onDaySelected(date, events); ^ lib/src/ui/pages/attendance_summary.dart:246:16: Error: The getter '_calendarController' isn't defined for the class '_AttendanceSummaryState'.
• '_AttendanceSummaryState' is from 'package:geo_attendance_system/src/ui/pages/attendance_summary.dart' ('lib/src/ui/pages/attendance_summary.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named '_calendarController'. color: _calendarController.isSelected(date) ^^^^^^^^^^^^^^^^^^^ lib/src/ui/pages/attendance_summary.dart:248:15: Error: The getter '_calendarController' isn't defined for the class '_AttendanceSummaryState'.
• '_AttendanceSummaryState' is from 'package:geo_attendance_system/src/ui/pages/attendance_summary.dart' ('lib/src/ui/pages/attendance_summary.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named '_calendarController'. : _calendarController.isToday(date) ^^^^^^^^^^^^^^^^^^^ lib/src/ui/pages/attendance_summary.dart:291:19: Error: The getter '_calendarController' isn't defined for the class '_AttendanceSummaryState'.
• '_AttendanceSummaryState' is from 'package:geo_attendance_system/src/ui/pages/attendance_summary.dart' ('lib/src/ui/pages/attendance_summary.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named '_calendarController'. _calendarController.setCalendarFormat(CalendarFormat.month); ^^^^^^^^^^^^^^^^^^^ lib/src/ui/pages/attendance_summary.dart:305:19: Error: The getter '_calendarController' isn't defined for the class '_AttendanceSummaryState'.
• '_AttendanceSummaryState' is from 'package:geo_attendance_system/src/ui/pages/attendance_summary.dart' ('lib/src/ui/pages/attendance_summary.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named '_calendarController'. _calendarController ^^^^^^^^^^^^^^^^^^^ lib/src/ui/pages/attendance_summary.dart:320:19: Error: The getter '_calendarController' isn't defined for the class '_AttendanceSummaryState'.
• '_AttendanceSummaryState' is from 'package:geo_attendance_system/src/ui/pages/attendance_summary.dart' ('lib/src/ui/pages/attendance_summary.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named '_calendarController'. _calendarController.setCalendarFormat(CalendarFormat.week); ^^^^^^^^^^^^^^^^^^^ lib/src/ui/pages/leave_application.dart:126:15: Error: No named parameter with the name 'body1'. body1: TextStyle( ^^^^^ /F:/flutter_windows_2.5.3-stable/flutter/packages/flutter/lib/src/material/text_theme.dart:81:9: Context: Found this candidate, but the arguments don't match. const TextTheme({ ^^^^^^^^^