Android Question java.lang.NoSuchMethodError: No virtual method subscribeToTopic

[Marco Maria Vilucchi]

Hi all,
I have B4A 7.80
I read all thread about this error.
I reinstall SDK and then I read this thread

https://www.b4x.com/android/forum/t...ging-issue-with-v8-00-subscribetotopic.93423/

where Erel says that it's solved in v1.21 (of FirebaseNotification library?) and put this link

https://www.b4x.com/android/forum/threads/updates-to-internal-libraries.59340/#post-591400

but in this link I don't find any version 1.21

and I have the problem too....
Someone can help me?
Thanks

 

[DonManfred]

Firebase notification is a internal library.
From the xml in the internal library folder.

<version>1.21</version>

I suggest to update your B4A.

 

[Marco Maria Vilucchi]

I can't buy a new version whenever I have a bug....
Why can't I use v7.8?

 

[DonManfred]

Contact support@basic4ppc.com and ask to get a downloadlink for this jar. Maybe it is available in forum somewhere but i can´t remember if and where.

In fact it is google who changed the SDK and the Library must be updated to work with the newest Mavenrepositories.

 

[Erel]

Notifications will not work properly with B4A v7.8 as it will not handle the requirements added in Android 8+. See the targetSdkVersion tutorial for more information.

The app will crash on Android 8+ devices when targetSdkVersion is set to 26.
The latest version of the library is attached.

 

[Marco Maria Vilucchi]

Thanks Erel,
I install new version of firebaseNotifications, and I have sdk 28, but app craches again
My tablet has Android 8.1.
Need new version of B4a?

 

[DonManfred]

but app craches again

Where is the full error? Should we guess it?

 

[Marco Maria Vilucchi]

** Activity (main) Resume **
*** Service (firebasemessaging) Create ***
** Service (firebasemessaging) Start **
firebasemessaging_subscribetotopics (java line: 253)
java.lang.NullPointerException: Attempt to invoke virtual method 'com.google.android.gms.tasks.Task com.google.firebase.iid.FirebaseInstanceId.zza(java.lang.String)' on a null object reference
at com.google.firebase.messaging.FirebaseMessaging.subscribeToTopic(Unknown Source:15)
at anywheresoftware.b4a.objects.FirebaseNotificationsService$FirebaseMessageWrapper.SubscribeToTopic(FirebaseNotificationsService.java:130)
at com.mamavi.slimup.firebasemessaging._subscribetotopics(firebasemessaging.java:253)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:186)
at anywheresoftware.b4a.keywords.Common$11.run(Common.java:1135)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:7000)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:441)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408)

 

[Erel]

While you can probably fix this error, once you get it working the app will crash when it receives a message while it is in the background. You must use B4A v8+ with the automatic foreground mode feature.

 

[Marco Maria Vilucchi]

hi,
I've buyed and installed B4a v9.01.2.
I have same error!!!
What can I do?

 

[DonManfred]

make sure NOT to have a firebasemessaging.jar and xml in your additional libs folder.

 

[Marco Maria Vilucchi]

no I haven't

 

[DonManfred]

You have updated the manifest to use the new Snippets? Note that you are now using B4A 8+ and need other Snippets than in the past.

 

[Marco Maria Vilucchi]

no I don't
Where can I find new snippets?

 

[DonManfred]

Reload the page and use the link i used. I do NOT search and post it again

Note that we are talking about Firebaseintegration! So the firebaseintegrationtutorial should be the place to look for it, right?

Do not check Google Map Tutorial or Bluetooth Tutorial. They will not help.

 

[Marco Maria Vilucchi]

Sorry, but for two days I can't work for this error....
I find snippets, I substitute the new (not added) but now I have this error
Sorry again

 

[DonManfred]

You DID READ the error?
You DID realized that you need the google-services.json in your projectfolder (as it was needed in the past!) but it is not there?

 

[Marco Maria Vilucchi]

no ithis is an erroneus picture
I have this

 

[DonManfred]

How dfo you expect we could help you here with this LESS Infos you provide?
Upload a small project which shows the issue.

I´m out here: i´m not interested to further try to help.

Theme.IAPTheme comes from admob. Are you using addmob and also added admob to your project? I guess yes as you are adding the Snippet for ADS.

 

[Marco Maria Vilucchi]

Ok I understand!!!
Not need snippets for ADS
Now I haven't errors.

Sorry for my problems, but I have a deadline and these problems.....
Sorry again.

Now I try to read token
I hope all is ok
Thanks again