対処方法 Android Studio → Preferences → Editor → Intentions → Dartにチェック → Quick assist powered by the Dart Analysis Server にチェック (Preferences の検索欄に assistant を設定にたどり着くのが速い) 参考 Can't wrap widget list with new widget assist by Alt+Enter · Issue #2448 · flutter/flutter-intellij VSCode: assists--quick-fixes Android Studio: assists--quick-fixes