2020 年 10 月 – 蒼葉森林

執行開發中 APP 時顯示「尚未信任開發者」

Problem

您的裝置管理設定不允許在此 iPAD 上使用開發者「Apple Development: [email protected] (XXXXXXXXXX)」的 APP。您可以在「設定」中允許使用這些 APP

Solution

設定 > 一般 > 裝置管理 > 開發者 APP > Apple Development: [email protected] > 信任 Apple Development: [email protected] > 信任

Got error "Unhandled Exception: Bad state: No element…" when call "cameras.first" run on iOS Simulator

Reason

iOS Simulator CANNOT use Camera

Reference

flutter – availableCameras is empty in IOS but no problem in Android – Stack Overflow

How to access iOS simulator camera – Stack Overflow

The await expression can only be used in an async function.

Wrong

void main() {
  final cameras = await availableCameras();
  runApp(MyApp());
}

Correct

Future<void> main() async {
  final cameras = await availableCameras();
  runApp(MyApp());
}

Target of URI doesn't exist: 'package:camera/camera.dart'.

確認 pubspec.yaml 的 dependencies 是否已加入 camera

dependencies:
  flutter:
    sdk: flutter
  camera:

在專案資料夾下執行

flutter pub get

AWS CLI

Install

sudo pip3 install awscl

aws configure

If you don’t have an access key, you can create one at IAM Management Console

AWS Access Key ID [None]: <YOUR ACCESS KEY>
AWS Secret Access Key [None]: <YOUR SECRET ACCESS KEY>
Default region name [None]: ap-northeast-1
Default output format [None]:

Use

S3

Sync all file from bucket to local

aws s3 sync s3://litawardab/ . --delete

Reference