Calling getContacts throws an exception on release built apk

[korenzerah]

🐛 Bug Report

Exception is thrown after this line: final dynamic jsonString = await _channel.invokeMethod('getContacts');

Exception details: E/flutter (31579): [ERROR:flutter/shell/platform/android/platform_view_android_jni.cc(40)] java.lang.AssertionError: AssertionError (GSON 2.8.5): java.lang.NoSuchFieldException: HOME E/flutter (31579): at com.d.a.f.a(Unknown Source:73) E/flutter (31579): at com.d.a.f.a(Unknown Source:8) E/flutter (31579): at com.d.a.f.a(Unknown Source:5) E/flutter (31579): at com.d.a.f.a(Unknown Source:13) E/flutter (31579): at com.a.a.c.a$a.a(Unknown Source:12) E/flutter (31579): at com.a.a.b.onMethodCall(Unknown Source:33) E/flutter (31579): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(Unknown Source:17) E/flutter (31579): at io.flutter.view.FlutterNativeView.handlePlatformMessage(Unknown Source:26) E/flutter (31579): at android.os.MessageQueue.nativePollOnce(Native Method) E/flutter (31579): at android.os.MessageQueue.next(MessageQueue.java:326) E/flutter (31579): at android.os.Looper.loop(Looper.java:160) E/flutter (31579): at android.app.ActivityThread.main(ActivityThread.java:6863) E/flutter (31579): at java.lang.reflect.Method.invoke(Native Method) E/flutter (31579): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:537) E/flutter (31579): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) E/flutter (31579): Caused by: java.lang.AssertionError: java.lang.NoSuchFieldException: HOME E/flutter (31579): at com.d.a.b.a.n$a.(Unknown Source:87) E/flutter (31579): at com.d.a.b.a.n$24.a(Unknown Source:29) E/flutter (31579): at com.d.a.f.a(Unknown Source:74) E/flutter (31579): at com.d.a.b.a.i.a(Unknown Source:42) E/flutter (31579): at com.d.a.b.a.i.a(Unknown Source:122) E/flutter (31579): at com.d.a.b.a.i.a(Unknown Source:22) E/flutter (31579): at com.d.a.f.a(Unknown Source:74) E/flutter (31579): at com.d.a.b.a.b.a(Unknown Source:26) E/flutter (31579): at com.d.a.f.a(Unknown Source:74) E/flutter (31579): at com.d.a.b.a.i.a(Unknown Source:42) E/flutter (31579): at com.d.a.b.a.i.a(Unknown Source:122) E/flutter (31579): at com.d.a.b.a.i.a(Unknown Source:22) E/flutter (31579): at com.d.a.f.a(Unknown Source:74) E/flutter (31579): at com.d.a.b.a.m.a(Unknown Source:18) E/flutter (31579): at com.d.a.b.a.b$a.a(Unknown Source:25) E/flutter (31579): at com.d.a.b.a.b$a.a(Unknown Source:2) E/flutter (31579): at com.d.a.f.a(Unknown Source:34) E/flutter (31579): ... 14 more E/flutter (31579): Caused by: java.lang.NoSuchFieldException: HOME E/flutter (31579): at java.lang.Class.getField(Class.java:1601) E/flutter (31579): at com.d.a.b.a.n$a.(Unknown Source:34) E/flutter (31579): ... 30 more E/flutter (31579): F/flutter (31579): [FATAL:flutter/shell/platform/android/platform_view_android_jni.cc(77)] Check failed: CheckException(env).

• The classes are minified after proguard. It might cause the exception.
• Notice this line in the exception: java.lang.NoSuchFieldException: HOME

Expected behavior

Get the contacts

Reproduction steps

call getContacts method

Configuration

Version: 0.0.3

Platform:

• [ ] :iphone: iOS
• [x] :robot: Android

[oliverbytes]

I figured the culprit here. It happens when minifyEnabled is set to true. So just disable it and it should fix

I commented these on my app/build.gradle and now works

buildTypes {
        release {
                .........
                minifyEnabled false // set this to false to prevent java.lang.NoSuchFieldException