App Crashed, Agora Chat SDK for Flutter app when running in release mode.

[ahsanrazapk]

No pending exception expected: java.lang.ClassNotFoundException: com.hyphenate.chat.adapter.EMAREncryptUtils

agora_chat_sdk: ^1.1.1

[dujiepeng]

add proguard rules in app/proguard-rules.pro file, add the following lines to prevent code obfuscation:

-keep class com.hyphenate.** {*;}
-dontwarn  com.hyphenate.**