1. andorid/app/proguard-rules.pro 생성 2. 아래 코드 삽입 # https://github.com/flutter/flutter/issues/78625#issuecomment-804164524 #-keep class io.flutter.app.** { *; } -keep class io.flutter.plugin.** { *; } -keep class io.flutter.util.** { *; } -keep class io.flutter.view.** { *; } #-keep class io.flutter.** { *; } -keep class io.flutter.plugins.** { *; } -keep class cohttp://m.google.android.play.core..