Firebase Performance Monitoring: The App start trace `_app_start` seems missing, but other traces work!

[kurosaki-tisak]

[READ] Step 1: Are you in the right place?

Issues filed here should be about bugs in the code in this repository.
If you have a general question, need help debugging, or fall into some
other category use one of these other channels:

• For general technical questions, post a question on StackOverflow
  with the firebase tag.
• For general Firebase discussion, use the firebase-talk
  google group.
• For help troubleshooting your application that does not fall under one
  of the above categories, reach out to the personalized
  Firebase support channel.

[REQUIRED] Step 2: Describe your environment

• Android Studio version: Android Studio Hedgehog | 2023.1.1 Patch 2
• Firebase Component: Firebase Performance
• Component version: com.google.firebase.firebase-perf:1.4.2

[REQUIRED] Step 3: Describe the problem

Steps to reproduce:

As the screenshot below, I found the app start trace was missing from both the Logcat and Performance dashboards, but other automatic traces and custom traces work!

I have done everything like the documents said, but the _app_start is still missing!

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[lehcar09]

Hi @kurosaki-tisak, thank you for reaching out and reporting the issue. When trying to reproduce the issue, I noticed that instead of "_app_start", an "_as" event has been logged in the Logcat.

Upon checking the Firebase Console Dashboard, the "_app_start" event is visible under the Custom traces tab.

Could you check if you can see the _as event being logged?

[kurosaki-tisak]

Hello @lehcar09 and thank you for your support!

As you can see in the screenshot below, _as trace seems missing while both _fs (_app_in_foreground) and _bs (_app_in_background) work as usual!

Also, on the Firebase Performance Dashboard, as shown in the screenshot below, the _app_startup (showing only 1 sample) used to appear long ago. Now, as I've mentioned, it's missing without any clue, so please help!

Thank you!

[lehcar09]

Is there any chance you share an MCVE to help us investigate the issue? If you're unable to provide one, can you try our quickstart app and see if you can reproduce the issue?

[VishalRajora]

I am also facing the same issue.
After changing BOM version from '31.1.1' to above, _as is not logged in the logcat and FirebasePerformance consol.

But the twist is, I have created one sample app and tried the same, So _as is logging in logcat and consol

[VishalRajoraTiket]

I have fixed this.

[argzdev]

Hi @VishalRajora, thanks for confirming that this is resolved on your end. I'm guessing there might've been a configuration issue. I'll go ahead and close this for now. Thanks!