I am getting the following message after I connect the firebase...
I have installed JDK version 14.0.1 but it still looking for a jdk inside the jre directory.

Launching lib\main.dart on ONEPLUS A5000 in debug mode...
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':firebase_core:compileDebugJavaWithJavac'.

Could not find tools.jar. Please check that C:\Program Files\Java\jre1.8.0_271 contains a valid JDK installation.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 16s
Exception: Gradle task assembleDebug failed with exit code 1

Flutter version: 1.20.4
SO: W10 x64

Got this trace:
I/flutter (28331): The following NoSuchMethodError was thrown building HomeScreen(dirty, dependencies: [MediaQuery], I/flutter (28331): state: _HomeScreenState#1c7c2): I/flutter (28331): The getter 'length' was called on null. I/flutter (28331): Receiver: null I/flutter (28331): Tried calling: length I/flutter (28331): I/flutter (28331): The relevant error-causing widget was: I/flutter (28331): HomeScreen I/flutter (28331): file:///E:/bada/Documents/FAUSI/FLUTTER/OCTUBRE%202020/Flutter_medical/lib/main.dart:64:30 I/flutter (28331): I/flutter (28331): When the exception was thrown, this was the stack: I/flutter (28331): #0 Object.noSuchMethod (dart:core-patch/object_patch.dart:51:5) I/flutter (28331): #1 titleCase (package:flutter_medical/widgets.dart:369:12) I/flutter (28331): #2 _HomeScreenState.build (package:flutter_medical/routes/home.dart:415:50) I/flutter (28331): #3 StatefulElement.build (package:flutter/src/widgets/framework.dart:4744:28) I/flutter (28331): #4 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4627:15) I/flutter (28331): #5 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4800:11) I/flutter (28331): #6 Element.rebuild (package:flutter/src/widgets/framework.dart:4343:5) I/flutter (28331): #7 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2730:33) I/flutter (28331): #8 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:913:20) I/flutter (28331): #9 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:302:5) I/flutter (28331): #10 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1117:15) I/flutter (28331): #11 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1055:9) I/flutter (28331): #12 SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:971:5) I/flutter (28331): #16 _invoke (dart:ui/hooks.dart:251:10) I/flutter (28331): #17 _drawFrame (dart:ui/hooks.dart:209:3) I/flutter (28331): (elided 3 frames from dart:async) I/flutter (28331): I/flutter (28331): ════════════════════════════════════════════════════════════════════════════════════════════════════ I/flutter (28331): Instance of 'QuerySnapshot' I/flutter (28331): worked I/flutter (28331): Instance of 'QuerySnapshot' I/flutter (28331): Instance of 'QuerySnapshot' I/flutter (28331): Another exception was thrown: NoSuchMethodError: The getter 'length' was called on null.

after 'flutter run'
terminal shows:

Unhandled Exception: [core/not-initialized] Firebase has not been correctly initialized. Have you added the "GoogleService-Info.plist" file to the project?

1stly thanks for this great work

I am getting a red screen after irunning the app. I am running it on a device and is shows a red screen with error:

NoSuchMethodError: The getter 'length' was called on null.

Receiver: null

Tried calling 'lenght'

See also: https://flutter.dev/docs/testing/errors

THE IDE DEBUGGER READS:

════════ Exception caught by widgets library ═══════════════════════════════════
The following NoSuchMethodError was thrown building:
The getter 'length' was called on null.
Receiver: null
Tried calling: length

When the exception was thrown, this was the stack
#0      Object.noSuchMethod (dart:core-patch/object_patch.dart:51:5)
#1      titleCase
package:flutter_medical/widgets.dart:396
#2      _HomeScreenState.userHeader
package:flutter_medical/routes/home.dart:175
#3      _HomeScreenState.loadUserInfo.<anonymous closure>
package:flutter_medical/routes/home.dart:116
#4      SliverChildBuilderDelegate.build
package:flutter/…/widgets/sliver.dart:449
...
════════════════════════════════════════════════════════════════════════════════
W/System  (10106): ClassLoader referenced unknown path: system/framework/mediatek-cta.jar
I/System.out(10106): e:java.lang.ClassNotFoundException: com.mediatek.cta.CtaHttp

Also i note that there are no functions specified are they not required? And added to that the Database rules. any guidance on that?

Its an humble request

Thanks for the application, I have the following error when I try to launch it.

`→ flutter run [9794f47]
Using hardware rendering with device Android SDK built for x86. If you notice graphics artifacts, consider enabling
software rendering with "--enable-software-rendering".
Launching lib/main.dart on Android SDK built for x86 in debug mode...

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:processDebugGoogleServices'.

File google-services.json is missing. The Google Services Plugin cannot function without it.
Searched Location:
/home/mario/tmp/flutter/flutter_medical/android/app/src/nullnull/google-services.json
/home/mario/tmp/flutter/flutter_medical/android/app/src/debug/google-services.json
/home/mario/tmp/flutter/flutter_medical/android/app/src/nullnullDebug/google-services.json
/home/mario/tmp/flutter/flutter_medical/android/app/src/nullnull/debug/google-services.json
/home/mario/tmp/flutter/flutter_medical/android/app/src/debug/nullnull/google-services.json
/home/mario/tmp/flutter/flutter_medical/android/app/google-services.json

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 12s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done 12,7s
Exception: Gradle task assembleDebug failed with exit code 1
`

flutter pub get
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Warning
──────────────────────────────────────────────────────────────────────────────
Your Flutter application is created using an older version of the Android
embedding. It is being deprecated in favor of Android embedding v2. Follow the
steps at

https://flutter.dev/go/android-project-migration

I am trying to configure my firebase database and i couldn't resolve this issue
I get this error when i am trying to sign in. The user exists but cannot login.

It would be very helpful to have firebase rules and database scheme.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1m 44s
Running "flutter pub get" in flutter_medical...
Launching lib\main.dart on Android SDK built for x86 64 in debug mode...
lib\main.dart:1
Parameter format not correct -

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:processDebugGoogleServices'.

File google-services.json is missing. The Google Services Plugin cannot function without it.
Searched Location:
D:\Programming Essentials\Open Source\flutter_medical\android\app\src\nullnull\google-services.json
D:\Programming Essentials\Open Source\flutter_medical\android\app\src\debug\google-services.json
D:\Programming Essentials\Open Source\flutter_medical\android\app\src\nullnullDebug\google-services.json
D:\Programming Essentials\Open Source\flutter_medical\android\app\src\nullnull\debug\google-services.json
D:\Programming Essentials\Open Source\flutter_medical\android\app\src\debug\nullnull\google-services.json
D:\Programming Essentials\Open Source\flutter_medical\android\app\google-services.json
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)