2020 年 10 月 – 蒼葉森林

2020 年 10 月 4 日

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

2020 年 10 月 4 日

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

2020 年 10 月 4 日

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());
}

2020 年 10 月 4 日

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

2020 年 10 月 2 日

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