how i can give same signature matching

[AstinOfficial]

[Instrumentation] INSTRUMENTATION_STATUS: Error=Permission Denial: starting instrumentation ComponentInfo{io.appium.uiautomator2.server.test/androidx.test.runner.AndroidJUnitRunner} from pid=22085, uid=2000 not allowed because package io.appium.uiautomator2.server.test does not have a signature matching the target io.appium.uiautomator2.server
[Instrumentation] INSTRUMENTATION_STATUS: id=ActivityManagerService
[Instrumentation] INSTRUMENTATION_STATUS_CODE: -1
[Instrumentation] java.lang.SecurityException: Permission Denial: starting instrumentation ComponentInfo{io.appium.uiautomator2.server.test/androidx.test.runner.AndroidJUnitRunner} from pid=22085, uid=2000 not allowed because package io.appium.uiautomator2.server.test does not have a signature matching the target io.appium.uiautomator2.server
[Instrumentation] at android.os.Parcel.createExceptionOrNull(Parcel.java:3011)
[Instrumentation] at android.os.Parcel.createException(Parcel.java:2995)
[Instrumentation] at android.os.Parcel.readException(Parcel.java:2978)
[Instrumentation] at android.os.Parcel.readException(Parcel.java:2920)
[Instrumentation] at android.app.IActivityManager$Stub$Proxy.startInstrumentation(IActivityManager.java:5500)
[Instrumentation] at com.android.commands.am.Instrument.run(Instrument.java:532)
[Instrumentation] at com.android.commands.am.Am.runInstrument(Am.java:208)
[Instrumentation] at com.android.commands.am.Am.onRun(Am.java:85)
[Instrumentation] at com.android.internal.os.BaseCommand.run(BaseCommand.java:62)
[Instrumentation] at com.android.commands.am.Am.main(Am.java:54)
[Instrumentation] at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
[Instrumentation] at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:355)
[Instrumentation] Caused by: android.os.RemoteException: Remote stack trace:
[Instrumentation] at com.android.server.am.ActivityManagerService.startInstrumentation(ActivityManagerService.java:14641)
[Instrumentation] at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:2611)
[Instrumentation] at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2630)
[Instrumentation] at android.os.Binder.execTransactInternal(Binder.java:1280)
[Instrumentation] at android.os.Binder.execTransact(Binder.java:1244)
[Instrumentation] The process has exited with code 1
[AndroidUiautomator2Driver@4006 (d32c973e)] The instrumentation process cannot be initialized. Make sure the application under test does not crash and investigate the logcat output.

[KazuCocoa]

Could you share the full Appium log and how to prepare the io.appium.uiautomator2.server.test/io.appium.uiautomator2.server packages?

Usually both have the same appium dev's signature
https://github.com/appium/appium-adb/tree/master/keys