Develop Reference

Emulator: qemu-system-i386.exe: Unable to open `/path/pstore.bin`: Permission denied

Why is android emulator not starting? It was working but accidentally it starts to throw this exception and the emulator hangs up on Start Screen as follows
and in android studio, when I run my code it says
Emulator: qemu-system-i386.exe: Unable to open C:\Users\Aman.android\avd\Android_Accelerated_x86_Oreo.avd\data\misc\pstore\pstore.bin: Permission denied
As answered here I unchecked the pstore folder Readonly attribute but it didn't help me. I have also tried deleting the folder it doesn't also fix the problem.
I am woking on windows 10 with
Android Studio 3.3
API Level 27
Android 8.1 (Google APIs)

Are you accessing files on the start of the app? because if that's the case than you have to ask the runtime permission first.

Pre-launch reports UiAutomation not connected error

when I try to upload my APK to android market I get a pre-launch reports with the following error. It only happens with Samsung galaxy S9.
java.lang.IllegalStateException: UiAutomation not connected!
at android.app.UiAutomation.throwIfNotConnectedLocked(UiAutomation.java:1043)
at android.app.UiAutomation.waitForIdle(UiAutomation.java:647)
at android.support.test.uiautomator.r.a(QueryController.java:36)
at android.support.test.uiautomator.r.c(QueryController.java:32)
at android.support.test.uiautomator.r.a(QueryController.java:9)
at android.support.test.uiautomator.y.g(UiDevice.java:91)
at androidx.test.tools.crawler.platform.uiautomator.UiAutomatorScreenStateBuilder.getCurrentActivity(UiAutomatorScreenStateBuilder.java:39)
at androidx.test.tools.crawler.platform.uiautomator.UiAutomatorStateExtractor.getCurrentActivity(UiAutomatorStateExtractor.java:34)
at androidx.test.tools.crawler.platform.hybrid.HybridStateExtractor.getCurrentActivity(HybridStateExtractor.java:31)
at androidx.test.tools.crawler.controller.remote.RemotePlatform.handlePerformActionMessage(RemotePlatform.java:25)
at androidx.test.tools.crawler.controller.remote.RemotePlatform.access$300(RemotePlatform.java:91)
at androidx.test.tools.crawler.controller.remote.RemotePlatform$ControllerMessageHandler.handleMessage(RemotePlatform.java:8)
I don't think this is related to my code because I run the app without problems in the Android Studio emulator.
Any help with this?
Thanks for your help.

Error while waiting for device: The emulator process for AVD Nexus_5_API_25 was killed

I recently installed android studio. I am running android studio 3.1.4. I am facing an issue in which I have not start android studio emulator. When I start emulator then error occur "Error while waiting for device: The emulator process for AVD Nexus_5_API_25 was killed." and popup shown on screen is "Emulator: Process finished with exit code 1[enter image description here]"
Please see this image
https://i.stack.imgur.com/s7BsP.png
Please resolve this error.

I suggest you give more Detail about this..or follow some video tutorials that will resolve your problem.
I have same issue i follow some tutorials that solved my this issue from start to end.

how to take screen shot of android app when testcase fails on real device

I am trying to get screenshot on android/iPhone device with following code:
File temp = ((TakesScreenshot (AndroidDriver) driver).getScreenshotAs(OutputType.FILE);
FileUtils.copyFile(temp, new File("D:\\my1.png"));
I am getting error unable to handle screenshot in Appium version
1.4.8. Please help me to resolve this issue with my native android app.

Please try with following code File temp=((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE); FileUtils.copyFile(temp, new File("D:\\my1.png"));

this is resolved by switching the context to native from web --- driver.context("NATIVE_APP");

How do I debug my Android app on Samsung

I am trying to debug my first app. I have a Samsung Galaxy S3 with Android Jelly Bean (I'm a Windows user) and I have installed the latest version of Kies and have installed all required drivers for my device.
Following the steps to debug in the Android Getting Started tutorial, I have not been able to successfully debug my app on my phone or in an emulator.
Actually I don't really care fo the emulator at this point since this app is just a hello world app. I need to see it on my device but I can't and I don't know what I'm doing wrong, if anythin.
When I hit the debug button in Android Studio, and select my Device as the device to debug on from the popup dialog, Android Studio then displays the following error:
Installing myapplication
DEVICE SHELL COMMAND: pm install -r
"/data/local/tmp/myapplication"
pkg: /data/local/tmp/myapplication
Failure [INSTALL_FAILED_INVALID_APK]
I have searched this error but all the solutionts I have seen are telling me to do things I've already done!
How can I debug an app on Samsung GS3 using Android Studio?

Whats your package name ?
You must have one "." at least