Method return type must not include a type variable or wildcard

[kikebodi]

I'm getting the following error:
IllegalArgumentException: Method return type must not include a type variable or wildcard: io.reactivex.Flowable<com.tinder.scarlet.WebSocket$Event$OnConnectionOpened<?>>
at
@Receive fun observeOnConnectionOpenedEvent(): Flowable<WebSocket.Event.OnConnectionOpened<*>>

fun <T> create(service: Class<T>): T { val clientBuilder = OkHttpClient.Builder() clientBuilder.addInterceptor(AuthInterceptor() val scarlet = Scarlet.Builder() .webSocketFactory(clientBuilder.build().newWebSocketFactory(ApiEndPoint.WEBSOCKET)) .addMessageAdapterFactory(GsonMessageAdapter.Factory()) .addStreamAdapterFactory(RxJava2StreamAdapterFactory()) .build() return scarlet.create(service) }

val websocketApi = BaseScarletBuilder.create(WebsocketApi::class.java)

Is this the way we are suppose to use the lib?

[7va]

Same thing

[7va]

I have fit it by replace
@receive fun observeOnConnectionOpenedEvent(): Flowable<WebSocket.Event.OnConnectionOpened<*>>
to
@receive
fun observeOnConnectionOpenedEvent(): Flowable<WebSocket.Event>

[dkambersky]

@7va can you share the Scarlet portions of your build.gradle? Changing to WebSocket.Event leads to

java.lang.IllegalStateException: Cannot resolve stream adapter for type io.reactivex.Flowable<com.tinder.scarlet.WebSocket$Event>

for me.

[kikebodi]

In my case @Receive fun observeOnConnectionOpenedEvent(): Flowable<WebSocket.Event> compiles but never gets a response on subscribe().

@dkambersky this is how my Gradle looks like:
def scarletVersion = "0.1.4"
implementation "com.github.tinder.scarlet:scarlet:$scarletVersion"
implementation "com.github.tinder.scarlet:scarlet-websocket-okhttp:$scarletVersion"
implementation "com.github.tinder.scarlet:scarlet-websocket-mockwebserver:$scarletVersion"
implementation "com.github.tinder.scarlet:scarlet-stream-adapter-rxjava2:$scarletVersion"
implementation "com.github.tinder.scarlet:scarlet-message-adapter-gson:$scarletVersion"
implementation "com.github.tinder.scarlet:scarlet-lifecycle-android:$scarletVersion"

[okaymak]

I had the same issue, but finally managed to make it work like this:

interface MyService {
    @Receive
    fun observeOnConnectionOpenedEvent(): Flowable<WebSocket.Event>
}

and then:

    myService.observeOnConnectionOpenedEvent().subscribe {
            when (it) {
                is WebSocket.Event.OnConnectionOpened<*> -> Log.d("Socket", "Connection opened")
                is WebSocket.Event.OnConnectionClosing -> Log.d("Socket", "Connection closing")
                is WebSocket.Event.OnConnectionClosed -> Log.d("Socket", "Connection closed")
                is WebSocket.Event.OnConnectionFailed -> Log.e("Socket", "Connection failed", it.throwable)
                is WebSocket.Event.OnMessageReceived -> Log.d("Socket", "Message received")
                else -> Log.d("Socket", it.toString())
            }
        }

[zhxnlai]

@7va can you share the Scarlet portions of your build.gradle? Changing to WebSocket.Event leads to

java.lang.IllegalStateException: Cannot resolve stream adapter for type io.reactivex.Flowable<com.tinder.scarlet.WebSocket$Event>

for me.

@dkambersky I think you might have forgotten to add a scarlet-stream-adapter-rxjava2