java.lang.IllegalArgumentException: Receive method must return ParameterizedType: public abstract io.reactivex.Flowable com.example.demo.DemoWebsocketService.observeCustomInfo()

[PanPersonalProject]

if isMinifyEnabled = true，app will crash ：
java.lang.IllegalArgumentException: Receive method must return ParameterizedType: public abstract io.reactivex.Flowable com.example.demo.DemoWebsocketService.observeCustomInfo()

env:
gralde 8.7
agp8.5.0
jdk 17

source link:
https://github.com/PanPersonalProject/BaseAndroidFramework

[PanPersonalProject]

i fit this problem,just keep rxjava
-keep class io.reactivex.** { *; }

[nacatl]

Hello, I am using Scarlet along with kotlin coroutines FlowStreamAdapter.
I encountered the same problem, so I note the solution.

java.lang.IllegalArgumentException: Receive method must return ParameterizedType: public abstract kotlinx.coroutines.flow.Flow

-keep class kotlinx.coroutines.flow.Flow { *; }

# From https://github.com/Tinder/Scarlet/issues/155#issuecomment-828994395 thx!
-if interface * { @com.tinder.scarlet.ws.* <methods>; }
-keep,allowobfuscation interface <1>
-keepclassmembers,allowshrinking,allowobfuscation interface * {
    @com.tinder.scarlet.ws.* <methods>;
}