[英]java.lang.NoClassDefFoundError: on Android 6
應用程序在運行 android 9 的 Nexus6P 上運行良好。我正在嘗試在 Nexus 5 (Android 6) 上運行應用程序,但出現以下錯誤:
Caused by: java.lang.NoClassDefFoundError: org.openmined.syft.networking.datamodels.syft.AuthenticationResponseSerializer$deserialize$data$1$1
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at org.openmined.syft.networking.datamodels.syft.AuthenticationResponseSerializer$deserialize$data$1.invoke(AuthenticationDataModels.kt:66)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at org.openmined.syft.networking.datamodels.syft.AuthenticationResponseSerializer$deserialize$data$1.invoke(AuthenticationDataModels.kt:55)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at kotlinx.serialization.json.JsonElementBuildersKt.json(JsonElementBuilders.kt:14)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at org.openmined.syft.networking.datamodels.syft.AuthenticationResponseSerializer.deserialize(AuthenticationDataModels.kt:65)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at org.openmined.syft.networking.datamodels.syft.AuthenticationResponseSerializer.deserialize(AuthenticationDataModels.kt:55)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at kotlinx.serialization.json.internal.PolymorphicKt.decodeSerializableValuePolymorphic(Polymorphic.kt:34)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at kotlinx.serialization.json.internal.StreamingJsonInput.decodeSerializableValue(StreamingJsonInput.kt:33)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at kotlinx.serialization.CoreKt.decode(Core.kt:80)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at kotlinx.serialization.json.Json.parse(Json.kt:126)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at kotlinx.serialization.json.Json$Companion.parse(Json.kt:178)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at com.jakewharton.retrofit2.converter.kotlinx.serialization.Serializer$FromString.fromResponseBody(Serializer.kt:18)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at com.jakewharton.retrofit2.converter.kotlinx.serialization.DeserializationStrategyConverter.convert(DeserializationStrategyConverter.kt:11)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at com.jakewharton.retrofit2.converter.kotlinx.serialization.DeserializationStrategyConverter.convert(DeserializationStrategyConverter.kt:7)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at retrofit2.OkHttpCall.parseResponse(OkHttpCall.java:225)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at retrofit2.OkHttpCall.execute(OkHttpCall.java:188)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at retrofit2.adapter.rxjava2.CallExecuteObservable.subscribeActual(CallExecuteObservable.java:45)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at io.reactivex.Observable.subscribe(Observable.java:12267)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at retrofit2.adapter.rxjava2.BodyObservable.subscribeActual(BodyObservable.java:34)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at io.reactivex.Observable.subscribe(Observable.java:12267)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at io.reactivex.internal.operators.observable.ObservableSingleSingle.subscribeActual(ObservableSingleSingle.java:35)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at io.reactivex.Single.subscribe(Single.java:3603)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at io.reactivex.internal.operators.single.SingleSubscribeOn$SubscribeOnObserver.run(SingleSubscribeOn.java:89)
05-08 12:57:26.776 15456-15592/org.openmined.syft.demo W/System.err: at io.reactivex.Scheduler$DisposeTask.run(Scheduler.java:578)
05-08 12:57:26.777 15456-15592/org.openmined.syft.demo W/System.err: at io.reactivex.internal.schedulers.ScheduledRunnable.run(ScheduledRunnable.java:66)
05-08 12:57:26.777 15456-15592/org.openmined.syft.demo W/System.err: ... 6 more
數據模型
@Serializer(forClass = AuthenticationResponse::class)
internal class AuthenticationResponseSerializer : KSerializer<AuthenticationResponse> {
private val json = Json(JsonConfiguration.Stable)
override val descriptor: SerialDescriptor
get() = SerialClassDescImpl("AuthResponseSerializer")
override fun deserialize(decoder: Decoder): AuthenticationResponse {
val input = decoder as? JsonInput
?: throw SerializationException("This class can be loaded only by Json")
val response = input.decodeJson() as? JsonObject
?: throw SerializationException("Expected JsonObject")
val data = json {
response.forEach { key, value ->
if (key != "status")
key to value
}
}
return if (response.getPrimitive("status").content == AUTH_SUCCESS)
json.parse(
AuthenticationResponse.AuthenticationSuccess.serializer(),
data.toString()
)
else
json.parse(AuthenticationResponse.AuthenticationError.serializer(), data.toString())
}
override fun serialize(encoder: Encoder, obj: AuthenticationResponse) {
val output = encoder as? JsonOutput
?: throw SerializationException("This class can be saved only by Json")
when (obj) {
is AuthenticationResponse.AuthenticationSuccess -> output.encodeJson(
json.toJson(
AuthenticationResponse.AuthenticationSuccess.serializer(),
obj
)
)
is AuthenticationResponse.AuthenticationError ->
output.encodeJson(
json.toJson(
AuthenticationResponse.AuthenticationError.serializer(),
obj
)
)
}
}
}
任何人都可以評論可能是什么問題嗎? kotlinx.serialization
庫?
謝謝
嘗試將注釋@Keep添加到您的 Serializable class。
@Serializable
@Keep
class AuthenticationResponse {
// ...
}...
編譯器可能認為代碼未使用。 @Keep 表示在構建時縮小代碼時不應刪除帶注釋的元素
另一種解決方案
kotlinx-serialization-json 特定的。 如果您有 java.lang.NoClassDefFoundError kotlinx.serialization.json.JsonObjectSerializer,請添加此內容
-keepclassmembers class kotlinx.serialization.json.** {
*** Companion;
}
-keepclasseswithmembers class kotlinx.serialization.json.** {
kotlinx.serialization.KSerializer serializer(...);
}
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