How to set up Appium Espresso - Package name issue

[ayush547]

Hello,
I am trying to run Appium Espresso from Appium Server GUI and Appium Inspector with the following capabilities -

{
"platformName": "android",
"appium:appPackage": "com.sample.reacttestapp",
"appium:appActivity": "MainActivity",
"appium:noReset": true,
"appium:automationName": "espresso"
}

First I started Appium Server, then the inspector directly.

I am getting the following error -

[Espresso] [Instrumentation] java.lang.SecurityException: Permission Denial: starting instrumentation ComponentInfo{io.appium.espressoserver.test/androidx.test.runner.AndroidJUnitRunner} from pid=31946, uid=2000 not allowed because package io.appium.espressoserver.test does not have a signature matching the target com.sample.reacttestapp
[Espresso] [Instrumentation] INSTRUMENTATION_STATUS: Error=Permission Denial: starting instrumentation ComponentInfo{io.appium.espressoserver.test/androidx.test.runner.AndroidJUnitRunner} from pid=31946, uid=2000 not allowed because package io.appium.espressoserver.test does not have a signature matching the target com.sample.reacttestapp
[Espresso] INSTRUMENTATION_STATUS: id=ActivityManagerService
[Espresso] INSTRUMENTATION_STATUS_CODE: -1
[Espresso] [Instrumentation] at android.os.Parcel.createExceptionOrNull(Parcel.java:3011)
[Espresso] at android.os.Parcel.createException(Parcel.java:2995)
[Espresso] at android.os.Parcel.readException(Parcel.java:2978)
[Espresso] at android.os.Parcel.readException(Parcel.java:2920)
[Espresso] at android.app.IActivityManager$Stub$Proxy.startInstrumentation(IActivityManager.java:5500)
[Espresso] at com.android.commands.am.Instrument.run(Instrument.java:532)
[Espresso] at com.android.commands.am.Am.runInstrument(Am.java:208)
[Espresso] at com.android.commands.am.Am.onRun(Am.java:85)
[Espresso] at com.android.internal.os.BaseCommand.run(BaseCommand.java:62)
[Espresso] at com.android.commands.am.Am.main(Am.java:54)
[Espresso] at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
[Espresso] at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:355)
[Espresso] Caused by: android.os.RemoteException: Remote stack trace:
[Espresso] at com.android.server.am.ActivityManagerService.startInstrumentation(ActivityManagerService.java:14602)
[Espresso] at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:2611)
[Espresso] at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2638)
[Espresso] at android.os.Binder.execTransactInternal(Binder.java:1280)
[Espresso] at android.os.Binder.execTransact(Binder.java:1244)
[Espresso] Instrumentation process exited with code 1 from signal null

Am I missing something? UIAutomator2 works without anything additional.
I did try building the APK and providing it under "appium:app". (Currently I have metro running and app running off of that)
I also tried to set it to sign with the same debug.keystore but I don't see how that might affect package name.

I checked docs provided in the repo, past issues and discuss.appium.io, none of the solutions were helpful. Is there some other setup work required?

[KazuCocoa]

You can give app capability to handle it automatically https://github.com/appium/appium-espresso-driver#app

[ayush547]

That did not work for me, had some other issues (logcat mentions - java.lang.UnsatisfiedLinkError: couldn't find DSO to load: libfbjni.so, not sure what is wrong, will need to look into that). Meanwhile is there any other way around this?
Shouldn't appPackage ideally be used for this?

[KazuCocoa]

You need to configure dependencies properly for your test app as Espresso framework. UI2 and Espresso are different framework by Google, so they behave differently.
https://github.com/appium/appium-espresso-driver#espresso-build-config