[VertextAI] java.lang.NoClassDefFoundError: Failed resolution of: Lio/ktor/client/plugins/HttpTimeoutCapability

[658jjh]

Enviroment

• Android Studio version: Android Studio Ladybug | 2024.2.1 Patch 1
• Firebase Component: com.google.firebase:firebase-bom:33.5.1

Problem

I am encoutering when update ktor to 3.0.0,
I working if I downgrade ktor to version 2.x.x, after check VertextAI dependencies, I can see that we are using the version 2.3.2 so I think that was the problem

Relevant Code:

java.lang.NoClassDefFoundError: Failed resolution of: Lio/ktor/client/plugins/HttpTimeoutCapability;
System.err               W  	at io.ktor.client.engine.okhttp.OkHttpEngine.<init>(OkHttpEngine.kt:31)
System.err               W  	at io.ktor.client.engine.okhttp.OkHttp.create(OkHttp.kt:31)
System.err               W  	at io.ktor.client.engine.HttpClientEngineFactory$DefaultImpls.create$default(HttpClientEngine.kt:117)
System.err               W  	at com.google.firebase.vertexai.common.APIController.<init>(APIController.kt:93)
System.err               W  	at com.google.firebase.vertexai.GenerativeModel.<init>(GenerativeModel.kt:84)
System.err               W  	at com.google.firebase.vertexai.FirebaseVertexAI.generativeModel(FirebaseVertexAI.kt:68)
System.err               W  	at com.google.firebase.vertexai.FirebaseVertexAI.generativeModel$default(FirebaseVertexAI.kt:56)
System.err               W  	at platform.VertexAiManager_androidKt.audioHandling(VertexAiManager.android.kt:23)
System.err               W  	at ui.main.root.MainRootComponent$onAudioSelected$1.invokeSuspend(MainRootComponent.kt:184)
System.err               W  	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
System.err               W  	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:101)
System.err               W  	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:589)
System.err               W  	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:832)
System.err               W  	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:720)
System.err               W  	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:707)
WindowOnBackDispatcher   W  OnBackInvokedCallback is not enabled for the application.
                            Set 'android:enableOnBackInvokedCallback="true"' in the application manifest.
System.err               W  Caused by: java.lang.ClassNotFoundException: Didn't find class "io.ktor.client.plugins.HttpTimeoutCapability" on path: DexPathList[[dex file "/data/data/com.mocy.moneytracker/code_cache/.overlay/base.apk/classes22.dex", zip file "/data/app/~~l3nsB4MBl8FXfRa7Q2KsyQ==/com.mocy.moneytracker-YDDe9i3I2Cz1HYIIO4n89Q==/base.apk"],nativeLibraryDirectories=[/data/app/~~l3nsB4MBl8FXfRa7Q2KsyQ==/com.mocy.moneytracker-YDDe9i3I2Cz1HYIIO4n89Q==/lib/arm64, /data/app/~~l3nsB4MBl8FXfRa7Q2KsyQ==/com.mocy.moneytracker-YDDe9i3I2Cz1HYIIO4n89Q==/base.apk!/lib/arm64-v8a, /system/lib64, /system_ext/lib64]]
System.err               W  	at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:259)
System.err               W  	at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
System.err               W  	at java.lang.ClassLoader.loadClass(ClassLoader.java:312)

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[658jjh]

I have pulled the repo and updated Ktor to 3.0.0 and it is fixed.
Hope you guys can release it soon, thank you

[emilypgoogle]

Hi @658jjh thanks for the report. Vertex AI depends on Ktor major version 2 and a project level upgrade to Ktor 3.0.0 will run into some issues due to the breaking changes. As Ktor 3.0.0 was released recently, we plan to give it some time to stabilize and upgrade at a later point in time. This means the best solution is using Ktor 2.x.x for the time being.