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PLISEAdvent Calendar 2020

Day 23

AndroidエミュレータのFlutterアプリ内でネットワーク接続ができない

Last updated at Posted at 2020-12-22

パーミッションとDNS

環境

macOS Big Sur バージョン11.0.1
Android Studio 4.0.1
Android Emulator 30.0.12

エラー

socketexception: failed host lookup: 'hoge.com' (os error: no address associated with hostname, errno = 7)

解決方法

アプリのパーミッション設定

android/app/src/main/AndroidManifest.xml
<manifest>下に以下を追加

AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET"/>

これでもエラーが変わらなければ↓

macのDNS設定

システム環境設定>ネットワーク>Wi-Fi>詳細...>DNS
DNSサーバに8.8.8.8を追加
スクリーンショット 2020-12-16 5.51.47.png

参考

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