UNAVAILABLE: Credentials failed to obtain metadata

[shubh261096]

Hi, I am getting this error while creating the release build in every project. When I am directly installing the app via Android Studio it works as expected, but generating the signed apk has some issue, always shows this error:

UNAVAILABLE: Credentials failed to obtain metadata

Please help in this!

[abhi007tyagi]

Try to change minify=false and see if it works

[Aishwarya0108]

May I please know the functionality of BuildConfig.ClientAccessToken please?

[shubh261096]

@Aishwarya0108 If you using V1 API, then only you will need to add BuildConfig.ClientAccessToken in you build.gradle otherwise you won't have to add-in V2.

[shubh261096]

@abhi007tyagi Any update on minifyEnabled thing?

[abhi007tyagi]

@shubh261096
add the following to your proguard rules

-keep public class com.google.a** {
  public protected *;
}

[shubh261096]

@abhi007tyagi Didn't work. I tired on you your project.
Following below is the error:

    java.lang.ExceptionInInitializerError
        at c.b.a.a.a.a.a(:56)
        at c.b.a.a.a.t.<clinit>(:498)
        at c.b.a.a.a.r$g.internalGetFieldAccessorTable(:6797)
        at c.b.e.m1.getDescriptorForType(:133)
        at c.b.e.h4$d.a(:344)
        at c.b.e.h4$d.a(:334)
        at c.b.e.h4$d.a(:519)
        at c.b.e.a.toString(:111)
        at java.lang.String.valueOf(String.java:2924)
        at java.lang.StringBuilder.append(StringBuilder.java:132)
        at com.tyagiabhinav.dialogflowchat.MainActivity.a(:145)
        at com.tyagiabhinav.dialogflowchat.d.a(:50)
        at com.tyagiabhinav.dialogflowchat.d.onPostExecute(:19)
        at android.os.AsyncTask.finish(AsyncTask.java:755)
        at android.os.AsyncTask.access$900(AsyncTask.java:192)
        at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:772)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
     Caused by: java.lang.RuntimeException: Generated message class "c.b.e.z$p" missing method "getCtype".
        at c.b.e.m1.b(:1847)
        at c.b.e.m1.a(:79)
        at c.b.e.m1$g$h$b.<init>(:2154)
        at c.b.e.m1$g$h.<init>(:2222)
        at c.b.e.m1$g$g.<init>(:2717)
        at c.b.e.m1$g.a(:1973)
        at c.b.e.z$p.internalGetFieldAccessorTable(:28293)
        at c.b.e.m1.getDescriptorForType(:133)
        at c.b.e.m1$e.parseUnknownField(:1134)
        at c.b.e.z$p.<init>(:28263)
        at c.b.e.z$p.<init>(:28162)
        at c.b.e.z$p$a.b(:30224)
        at c.b.e.z$p$a.b(:30218)
        at c.b.e.u$b.a(:888)
        at c.b.e.z$n.<init>(:11537)
        at c.b.e.z$n.<init>(:11429)
        at c.b.e.z$n$a.b(:13946)
        at c.b.e.z$n$a.b(:13940)
        at c.b.e.u$b.a(:888)
        at c.b.e.z$b.<init>(:5186)
        at c.b.e.z$b.<init>(:5122)
        at c.b.e.z$b$a.b(:10193)
        at c.b.e.z$b$a.b(:10187)
        at c.b.e.u$b.a(:888)
        at c.b.e.z$r.<init>(:1276)
        at c.b.e.z$r.<init>(:1196)
        at c.b.e.z$r$a.b(:4846)
        at c.b.e.z$r$a.b(:4840)
        at c.b.e.c.b(:158)
        at c.b.e.c.a(:191)
        at c.b.e.c.a(:203)
        at c.b.e.c.a(:208)
        at c.b.e.c.a(:48)
        at c.b.e.z$r.parseFrom(:2255)
        at c.b.e.a0$h.a(:410)
        at c.b.a.a.a.a.<clinit>(:118)
        at c.b.a.a.a.a.a(:56) 
        at c.b.a.a.a.t.<clinit>(:498) 
        at c.b.a.a.a.r$g.internalGetFieldAccessorTable(:6797) 
        at c.b.e.m1.getDescriptorForType(:133) 
        at c.b.e.h4$d.a(:344) 
        at c.b.e.h4$d.a(:334) 
        at c.b.e.h4$d.a(:519) 
        at c.b.e.a.toString(:111) 
        at java.lang.String.valueOf(String.java:2924) 
        at java.lang.StringBuilder.append(StringBuilder.java:132) 
        at com.tyagiabhinav.dialogflowchat.MainActivity.a(:145) 
        at com.tyagiabhinav.dialogflowchat.d.a(:50) 
        at com.tyagiabhinav.dialogflowchat.d.onPostExecute(:19) 
        at android.os.AsyncTask.finish(AsyncTask.java:755) 
        at android.os.AsyncTask.access$900(AsyncTask.java:192) 
        at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:772) 
        at android.os.Handler.dispatchMessage(Handler.java:107) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:7356) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930) 
     Caused by: java.lang.NoSuchMethodException: c.b.e.z$p.getCtype []
        at java.lang.Class.getMethod(Class.java:2072)
        at java.lang.Class.getMethod(Class.java:1693)```

[shubh261096]

Error got from Firebase Crashlytics:

Fatal Exception: java.lang.RuntimeException: Generated message class "com.google.cloud.dialogflow.v2.DetectIntentResponse$Builder" missing method "getResponseId".
       at com.google.protobuf.GeneratedMessageV3.getMethodOrDie(GeneratedMessageV3.java:3)
       at com.google.protobuf.GeneratedMessageV3.access$1000(GeneratedMessageV3.java:1)
       at com.google.protobuf.GeneratedMessageV3$FieldAccessorTable$SingularFieldAccessor$ReflectionInvoker.<init>(GeneratedMessageV3.java:3)
       at com.google.protobuf.GeneratedMessageV3$FieldAccessorTable$SingularFieldAccessor.<init>(GeneratedMessageV3.java:5)
       at com.google.protobuf.GeneratedMessageV3$FieldAccessorTable$SingularStringFieldAccessor.<init>(GeneratedMessageV3.java:1)
       at com.google.protobuf.GeneratedMessageV3$FieldAccessorTable.ensureFieldAccessorsInitialized(GeneratedMessageV3.java:22)
       at com.google.cloud.dialogflow.v2.DetectIntentResponse.internalGetFieldAccessorTable(DetectIntentResponse.java:2)
       at com.google.protobuf.GeneratedMessageV3.getDescriptorForType(GeneratedMessageV3.java:1)
       at com.google.protobuf.TextFormat$Printer.print(TextFormat.java:3)
       at com.google.protobuf.TextFormat$Printer.print(TextFormat.java:1)
       at com.google.protobuf.TextFormat$Printer.printToString(TextFormat.java:2)
       at com.google.protobuf.AbstractMessage.toString(AbstractMessage.java:1)
       at com.kings.retailapp.chatbot.ChatbotActivity.callbackV2(ChatbotActivity.java:1)
       at com.kings.retailapp.chatbot.ChatbotActivity.a(ChatbotActivity.java:2)
       at com.kings.retailapp.chatbot.a.onChanged(:4)
       at androidx.lifecycle.LiveData.considerNotify(LiveData.java:6)
       at androidx.lifecycle.LiveData.dispatchingValue(LiveData.java:8)
       at androidx.lifecycle.LiveData.setValue(LiveData.java:4)
       at androidx.lifecycle.MutableLiveData.setValue(MutableLiveData.java:1)
       at androidx.lifecycle.LiveData$1.run(LiveData.java:5)
       at android.os.Handler.handleCallback(Handler.java:794)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loop(Looper.java:176)
       at android.app.ActivityThread.main(ActivityThread.java:6651)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:824)

[abhi007tyagi]

@shubh261096 I can't say about Firebase! It is working at my end.
You may try to add the following:
If still, it is not working, you spend some time on proguard settings for your project!

-keep public class com.google.api.gax.core.** {
  public protected *;
}
-keep public class com.google.auth.oauth2.** {
  public protected *;
}

[shubh261096]

@abhi007tyagi Thanks. It was proguard problem on my end too. Finally did it.

[abhi007tyagi]

@shubh261096 @Aishwarya0108 try my latest library for easy integration of Chatbot
https://medium.com/@abhi007tyagi/android-dialogflow-chatbot-library-6b7b3822e7bc