tekartik/app_flutter_utils.dart

Flutter utilities

app_flutter_utils.dart's Issues

For Reference in case of getting: "The method 'call' was called on null" error

Today I was getting the following error when calling getDatabaseFactory().openDatabase(name) in one of my projects where I use app_sembast:

NoSuchMethodError: The method 'call' was called on null.
Receiver: null
Tried calling: call()
#0      BasicLock.synchronized              package:synchronized/src/basic_lock.dart:31
#1      SembastDatabase.flush               package:sembast/src/database_impl.dart:598
#2      SembastDatabase.open             package:sembast/src/database_impl.dart:892
<asynchronous suspension>
#3      DatabaseOpenHelper.openDatabase.<anonymous closure>      package:sembast/src/database_factory_mixin.dart:86
<asynchronous suspension>
#4      BasicLock.synchronized          package:synchronized/src/basic_lock.dart:33
<asynchronous suspension>
#5      LocalStorage._init                    package:foro/…/services/local_storage.dart:63
<asynchronous suspension>

I was able to resolve the issue by deleting pubspec.lock then run flutter packages get.

It seems that pubspec.lock didn't have all the transitive dependencies updated accordingly as I compared it to a new project. flutter clean alone doesn't help in this case but deleting pubspec.lock does.

Please feel free to close the issue. I just wanted to bring this to your attention in case someone else encounters the same issue in the future.

[app_sembast][iOS] Couldn't resolve the package 'process_run' in 'package:process_run/shell_run.dart'

In a fresh flutter project using latest stable channel (2.5.3) and using the following app_sembast package:

  tekartik_app_flutter_sembast:
    git:
      url: git://github.com/tekartik/app_flutter_utils.dart
      ref: null_safety
      path: app_sembast
    version: '>=0.1.0'

I'm receiving the following error which is preventing the app from building:

Launching lib/main.dart on iPhone 12 Pro Max in debug mode...
Xcode build done.                                           16.8s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **
Xcode's output:
↳
Error: Couldn't resolve the package 'process_run' in 'package:process_run/shell_run.dart'.
: Error: Not found: 'package:process_run/shell_run.dart'
import 'package:process_run/shell_run.dart';
           ^
: Error: Getter not found: 'userAppDataPath'.
      var dataPath = join(userAppDataPath, packageName, 'databases');
                          ^^^^^^^^^^^^^^^
    Unhandled exception:
FileSystemException(uri=org-dartlang-untranslatable-uri:package%3Aprocess_run%2Fshell_run.dart; message=StandardFileSystem only supports file:* and data:* URIs)
#0      StandardFileSystem.entityForUri (package:front_end/src/api_prototype/standard_file_system.dart:34:7)
#1      asFileUri (package:vm/kernel_front_end.dart:614:37)
#2      writeDepfile (package:vm/kernel_front_end.dart:754:21)
    <asynchronous suspension>
#3      FrontendCompiler.compile (package:frontend_server/frontend_server.dart:570:9)
    <asynchronous suspension>
#4      starter (package:flutter_frontend_server/server.dart:85:12)
    <asynchronous suspension>
#5      main (file:///opt/s/w/ir/cache/builder/src/flutter/flutter_frontend_server/bin/starter.dart:13:24)
    <asynchronous suspension>
    Failed to package /Users/osaxma/playground/app_sembast_test2.
    Command PhaseScriptExecution failed with a nonzero exit code
    note: Using new build system
    note: Building targets in parallel
    note: Planning build
    note: Analyzing workspace
    note: Constructing build description
    note: Build preparation complete
    warning: Capabilities for Signing & Capabilities may not function correctly because its entitlements use a placeholder team ID. To resolve this, select a development team in the Runner editor. (in target 'Runner' from project 'Runner')
    /Users/osaxma/playground/app_sembast_test2/ios/Pods/Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.5.99. (in target 'FMDB' from project 'Pods')
Could not build the application for the simulator.
Error launching application on iPhone 12 Pro Max.
Exited (sigterm)

Following the link in the error message, it takes me here:

app_flutter_utils.dart/app_sqflite/lib/src/sqflite_io.dart

Line 4 in c4cbd56

import 'package:process_run/shell_run.dart';

Unlike the other imports in the same file, the import above isn't clickable from the IDE (cmd + left click).

sample code to reproduce:

import 'package:flutter/material.dart';
import 'package:tekartik_app_flutter_sembast/sembast.dart' as sb;

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await sb.getDatabaseFactory().openDatabase('test/local.db');
  runApp(const MyApp());
}

Flutter doctor -v:

Click To Expand

[✓] Flutter (Channel stable, 2.5.3, on macOS 11.6 20G165 darwin-x64, locale en)
    • Flutter version 2.5.3 at /Users/osaxma/fvm/versions/stable
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 18116933e7 (5 weeks ago), 2021-10-15 10:46:35 -0700
    • Engine revision d3ea636dc5
    • Dart version 2.14.4

[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at /Users/osaxma/Library/Android/sdk
    ✗ cmdline-tools component is missing
      Run `path/to/sdkmanager --install "cmdline-tools;latest"`
      See https://developer.android.com/studio/command-line for more details.
    ✗ Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.5.1, Build version 12E507
    • CocoaPods version 1.11.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)

[✓] VS Code (version 1.62.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.28.0

[✓] Connected device (3 available)
    • iPhone 12 Pro Max (mobile) • 9DA2058E-7269-416B-991F-BA92DE851CE6 • ios            • com.apple.CoreSimulator.SimRuntime.iOS-14-5 (simulator)
    • macOS (desktop)            • macos                                • darwin-x64     • macOS 11.6 20G165 darwin-x64
    • Chrome (web)               • chrome                               • web-javascript • Google Chrome 95.0.4638.69

! Doctor found issues in 1 category.