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I have a clean Android project on Android Studio (just with a "hello world' screen), and I'm trying to install the app on my Samsung Galaxy S10e.
I click the Run button, and this is what I see in the Build Output:
And the apk is generated successfully.
But it's not launched and not installed on the device (no icon, and it doesn't appear in the apps list).
When I try manually installing the apk by adb install app-debug.apk, it works. The app shortcut appears on the device, it's added to the apps list, and I can launch the app.
At first also adb install didn't work, giving out the error INSTALL_FAILED_TEST_ONLY, but I solved that by adding android.injected.testOnly=false to gradle.properties.
I tried changing Gradle version to 6.0.1 (looks like this is the latest at the moment), and it didn't help.
I also have my device selected at the top:
How can I make Android Studio install and launch the app on my device?
Android Studio version: 3.5.3
Edit:
I'm seeing the same behavior on an Emulator. I opened AVD from Android Studio and chose Pixel 3A. The emulator opens up, I run the app, nothing happens on the emulator (and I see the same Build Output messages).
The same happens to me. It is probably a bug in Android Studio. At the second compilation the app installs correctly. It is tedious.
There isn't enough information to find the cause of this issue.
But since it works with adb, it means you run adb command. There could be only one instance of adb daemon running. So if it's involved externally my guess is Android Studio won't have access to it.
Possibly try adb kill-server and running again from Android Studio and see if that helps.
I encountered the same problem, which I solved by checking the running devices. The connected phone had 2 accounts (might be personal & work) which was listed on the list of devices, so I had to select the second option, and it ran successfully on my phone. see the attached image.
One thing it might be:
Enable usb debugging
Settings
System
Developer options
Turn the setting on for usb debugging
If it does not appear go to settings about phone. Then click on build number like 7-10 times and it will enable you to have the developer options appear.
A couple of days ago (15th April 2017) I updated Android Studio with all the latest updates. Now when I try to run an app, the emulator window opens but I just get a message "waiting for device to come online". Eventually this times out and I get a message "installing APK", where it just seems to get stuck. I have searched the site and tried various advice including:
Deleting all the emulators and re-creating
Turning off the emulator in SDK manager, re-starting Android Studio and turning the emulator on again
turning off instant run
re-booting my PC, in case some update needed a re-start
The emulator I have is Nexus5X API23.5554
I have also deleted my app and created a completely new "hello World" app that does nothing but display one line of text, but I still get the same problem.
Has anyone any other ideas?
I ran into this issue too. It seems to be a bug with recent changes to the Android emulator. There is a workaround:
Launch the emulator independently from the Android Virtual Device (AVD) manager (there's an icon in the main Android Studio window)
Run your app. You'll notice the device name has changed from whatever the emulator is called to some generic name like 'Android x86 API 25'.
The app will run correctly on the emulator. You'll notice in logcat that the device name is 'emulator unknown'.
Hopefully Google will fix this over the next few days.
I couldn't get any emulator going at all, with no error messages, just 'waiting for device to come online'.
When tried to stop and start adb.exe in terminal:
adb kill-server
adb start-server
it said that adb is outdated. I had latest adb version downloded but Android Studio was trying to use some other file which was older version.
Finally, I checked environment variables and removed paths to:
C:\NVPACK\android-sdk-windows\platform-tools
and
C:\NVPACK\android-sdk-windows
as the newest version of SDK platform-tools I had on drive E: not C:, and is all working now.
Enzokie - Thanks. Nothing there seems to work, though. As a novice, I always assume that if something is wrong, it's my fault, but maybe not this time! I shall do as you suggest and raise it with Android unless anyone else suggests something that works.
My work around was to use a Nexus 5 instead of Nexus 5X.
If you don't know how to make an new emulator its tools>android>AVD manager> create new virtual device. Then just pick a new emulator and hit next until you're finished or customize it.
Resetting the ADB did the trick for me.
For Mac, In Android Studio -> Tools -> Android -> Android Device Monitor -> Under devices -> Down arrow there will be reset ADB option.
What worked for me was to wipe the emulator data. You can do this from AVD manager:
Tools -> AVD Manager -> Right click on virtual device - > Wipe Data
Hi I had the same Problem...so I did this:
Start your emulator, you will get the "wating for device to come online" error msg.
Wait till the emulator boots, then stop the process.
Now, on the emulator go to settings and make your "device" (emulator) to a developer device.
Check this, if you dont know how to do it -> https://www.digitaltrends.com/mobile/how-to-get-developer-options-on-android/
Then go on "Developer options" (in settings) and switch on the "usb-debugging" option. Remeber you PCs fingerprint.
Hope this was helpfull....
Android Studio no longer seems to be detecting when an app has installed on a target device and opened. It gets stuck on "Installing APK" and the progress bar is empty. There are no errors, the apk successfully installs and opens, it's just the IDE is still showing "Installing APK" and it does not automatically connect the debugger. I can manually connect the debugger using the "Attach debugger to Android process button", but this is not ideal.
Can anyone offer any suggestions for what's up and how to resolve it?
It turns out the problem wasn't with Android Studio, but with the device I was using for testing. I tried a different device and it behaved normally, progressing beyond "Installing APK" and stopping on breakpoints.
Somehow the "wait for debugger" setting in developer options on the problem device had switched to off. I switched this back on and now this device is behaving normally.
-Note that I had to choose an arbitrary debug app for the setting to become active. Once I'd set it on, I deselected the debug app and the setting remained on, as I left it. This was a HUAWEI P8 running android 6.0 API Level 23.
Recently, I was facing the same issue when I have updated My Device (MI A1) OS from Android Oreo(8.0) to Android Pie(9.0),
Solution: Go to the Settings > Developer options > Now click on > Revoke USB debugging authorisations.
It will disable/remove developer options from your device, Now restart your device once and then you just need to re-enable your developer options and that all you need to do, Enjoy Developing on Pie.
Hope this will help you as well.. :)
I found a solution that works for me. In Developer Options turn off "Monitor apps installed by ADB".
Just reboot your phone (:
It happens after update android version.
On my HTC One I unchecked “Verify apps over USB” in Settings -> Developer Options.
I had this same problem. I solved it by revoking USB Debugging Authorizations and then re-enabling USB Debugging on my chosen device(s).
Edit: Cleaning my project also helped with solving this problem.
for me it was something magic
I solve it by removing the USB from the Laptop and from mobile too(type-c cable) and
turning off the debugging mode and again turn it on
and then I connect it back to my Laptop and selected the same FILE TRANSFER MODE
then run the app and it get installed to my device and work as expected
Hope you will find Useful to
I have this problem recently on my Pixel 2 testing device, latest factory image with Android Studio 3.4, on windows 10.
I have tried all methods mentioned but none of them work. It cost me more than 6 hours to figure it out.
My problem is the USB driver, I am not using the "perfect" USB driver. My driver works in most scenarios and commands but not in every scenario.
You do not need Android Studio to dig into this problem, just using adb.
Please try if you can install apk from adb using following command:
adb install xxxx.apk
If it stuck at "performing streamed install" but never finish, this is the problem.
Please try push a big file(more than 5MB) to your device:
adb push xxxx.apk /storage/emulated/0
In my testing, it stuck at 13%, 16%, etc, but never go on. It seems cannot transfer large files. This is why the installation is pending in my case.
I update the driver to another one, and the problem is fixed. Hope it can solve your problem, too.
I had the exact same problem.
what's more, i can not adb shell and adb push files.
I am running an Ubuntu 18.04 VM and test on xiaomi phone 8,9.
The problem for me was the USB Compatibility setting for the VM was set to 2.0, it needs to be at least 3.0. To change the setting power down the VM and choose the "Edit virtual machine settings" in the VMPlayer startup menu. Then select the "USB Controller" device and change "USB Compatibility" to USB 3.0.
Hope this can help u!
It doesn't hurt to verify your USB port. In my case it was the faulty USB port which I had to switch to the mobo's one instead of the case port.
Restarting Android studio worked for me
I tried rebooting my phone and it worked.
When attach my mobile to my PC, the follow menu is showed. I Clicke on it.
In the next section, I had changed from "USB connection" to "Transfer files"
After that adb install works for me.
In my case, Second Space was created but not switched on. I had to delete the second space and everything worked just fine.
My settings are:
Usb debugging -> ON
Install via Usb -> ON
Verify over USB -> ON
Wait for debugger -> ON
Device: Redmi Note 5 Pro
I had this issue with an emulator on Linux. After trying pretty much every solution and suggestion on this page, what made it work for me was turning off Instant Run.
In my case i did not make sure that my android studio DSK manager was up to date with the android version that my device was operating on. So when running flutter doctor all seemed well, and i had the latest android version and all on android studio, but as mentioned it was not matching the version for my device i had connected.
Once i added the correct android version (in my case android 6.0) with SDK manager using android studio, it did not get stuck at installing apk.
My case was similar but for Android Version 10 required having the Verify bytecode of debuggable apps to off.
Final settings were:
USB debugging -> ON
Wait for debugger -> ON
Verify apps over USB -> ON
Verify bytecode of debuggable apps -> OFF
Device: Pixel XL
For me, the top answer "wait for debugger" was completely greyed out.
What worked for me was to look inside "Apps" and I noticed the app was uninstalled, but only for my current user. Clicking uninstall for all users unblocked the installation via Android Studio again.
Check following in your project
build-gradle plugin version in project level build.gradle file
gradle version in gradle-wrapper.properties file
buildToolsVersion
uninstalling the previous installed app worked for me
Turn off Verify apps over USB and Verify bytecode for debuggable apps (might not be available for all devices) in your Developer settings menu. The install time will decrease drastically.
I'm using Visual Studio Xamarin and the issue was caused by the missing CPU architecture. After checking them, the APK became installable via adb install ...
Just reboot your mobile . If not working try reboot your Android studio and mobile.
I create blank xamarin android project without add any code when i debug this project debugging without problem but when i run app with visual studio emulator for android emulator is running but not starting my app and deploy failed and don't show me error
why ?
please help me
I had the same issue. VS 2015 can launch the VS emulator but can't deploy the app.
I was able to solve the issue like this:
Launch the emulator (F5 in VS, then cancel the deployment using the Build/Cancel menu)
Click on the chevron icon (») in the toolbar to the right of the emulator
Select the Network tab
Locate the preferred network ip address
Back in VS, click on the Open Adb Command Prompt toolbar button
Type adb connect [the emulator ip address]
Press F5 again in VS
Looks like a VS bug to me.
I had the same issue. It turned out the root cause was that the VS Emulator couldn't find adb.exe.
When that happens it won't connect to the emulator unless you do the manual connection following the steps CSharpRocks gives. The emulator also won't be listed under "adb devices".
The fix for me was to reinstall the Android SDK, using the Windows EXE based installer (not the zip installer). The EXE installer sets the HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Android SDK Tools key, Path value, in the registry, pointing to the Android SDK root directory.
The VS Emulator uses that registry setting (or the Android Studio install registry setting) to find the SDK, assuming you didn't install the Android SDK with Visual Studio itself. With that, it should be able to find adb.exe and work.
Have a look here:
Xamarin Forms Android App Crashes Running Debug with VS Android Emulator
Start the Hyper-V manager
Select the emulator you are trying to use
Right-click, hit settings
Click processor
Click Compatibility
Set checkbox “Migrate to a physical computer with a different processor version”
I'm having a very similar issue. I have found two different kind-of-work-arounds, but have not yet figured out a full solution.
Start the emulator before trying to deploy to it
Launch the Visual Studio Emulator for Android application from the start menu.
Launch one of the available emulators via the green arrow
Attempt to again launch your application from visual studio, selecting the VS Emulator N-inch... emulator from the drop down menu
For me for some reason the app still doesn't "launch" on the emulator, although it is installed. So I have to open the application menu and select my app. Additionally it will usually crash the first several times I try to open it, but eventually displays my single default label, Welcome to Xamarin Forms!.
Run the application in Ad-Hoc mode
Before running the application, change the solution configuration (from the top toolbar next to the green "run" button) to Ad-Hoc.
The problem with both of these methods though is that I'm still not able to actually debug an application. I can run it, but my breakpoints are ignored and I think that will make finding bugs difficult once I actually start to write a real application.
I hope to update this answer once I figure out an actual solution.
I had the same problem yesterday. The problem appeared (probably) because I tried to start development after a long break. I updated VS and everything, but faced many issues.
Eventually you need to start fresh
Make sure SDK for emulator points to the right place (HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Android SDK Tools)
Run Visual Studio with Administrator privileges
Go to Hyper-V Manager and delete ALL Virtual Switches - let the system recreate them when needed. It will do it properly
Delete all existing emulators and recreate them in Visual Studio. I even found a comment to name them without spaces - not sure if it is needed, but wouldn't hurt.
Doing all this helped me. But I was on the verge of reinstalling Windows 10 clean. I think lots of things and configuration changed and are no longer compatible.
Try it enabling Hyper-V and using a Visual Studio Emulator from android; that worked for me after a lot of attempts and research
I had the same issue but in my case it was not the registry. After doing a release build, I deployed the app to the emulator device in release mode which pushes the app to the device and then effectively "disconnects". This leaves a version of the app on the device which seems to block further attempts at debugging or deploying.
I solved it by starting the emulator, going to "settings -> apps" and manually uninstalling my app. Then the next debug build & deploy worked again.
You could probably also manually start the emulator and say "wipe device" option so it starts fresh.
In VS2017, on a Windows10 machine, all I had to do to get the app to show up was turn off Mobile Data.
(swipe down or use settings, then click Mobile Data and confirm to turn it off).
After I turned it back on, I could access the app. Before doing this, it always seemed that the emulator ran, but wouldn't run the app.
... no idea why this worked, but I'm posting it here in case it helps someone.
During my troubleshooting process, I also looked at these articles:
VS Android Emulator wont run application
Troubleshooting the Visual Studio Emulator for Android
Update Your Path For The New Android Emulator Location
Install apache in VS 2015 here.
Visual studio requires apache to develop android apps.
You also may want to look at some other suggestions:
notshowing, troubleshooting
I had such issues before with the android SDK emulator, now I'm using Genymotion emulator instead of it, it is more light and faster and will be detected automatically by you VS once launched.
you can download the free version from here : https://www.genymotion.com/
and also you can download any device emulator.
So, I'm just trying to get into Android development and trying to setup my system with eclipse so I can run through the tutorials and whatnot to familiarize myself with the ecosystem. I'm running this on Ubuntu 12.10 (amd64) with eclipse version 3.8. I've run into a couple issues/questions with the initial setup and I'm not sure what to do about them...
1 - I don't seem to get the "adb devices" command to see any devices. I have both a Verizon Galaxy Nexus and a Nexus 7 tablet connected to my system and nothing is seen. I tried adding a couple Vendor IDs to the adb_usb.ini file, but that doesn't seem to have done the trick. The two IDs I added are "0x4e41" and "0x18d1" - I thought the latter was the "Google" device ID, but I'm obviously mistaken somewhere.
2 - I don't have anything configured under the "Run" button and I'm not sure how to configure running apps through the AVD emulators or through a device. I'm pretty sure I'm not going to be able to run any apps through my devices since adb isn't seeing them, but I do have a 4.1 AVD setup, which should be able to run any apps created. How do I configure the Run button to push the app through the emulator? Does it need to be started first or can it start the emulator and push the app automatically? Also, once I resolve the issue above in part 1, how do I configure the Run button to send apps to either of my devices?
Any/all help would be much appreciated. Thanks in advance.
EDIT: As both comments up till this point have mentioned using the Run menu, but I don't seem to have the same Run menu as either of you. The only thing I have under the Run menu is
"External Tools", then under that is
"Run As" (which is a sub-menu with nothing under it - I assume since I've not configured anything),
"External Tools Configuration..."
"Organize Favorites...".
I'm not seeing anything relating to "Run Configurations" at all.
EDIT2: I just tried adding the udev rules file as mentioned in the "Using hardware" page on d.android.com and that doesn't seem to have had any affect (even after reboot). Still not able to see any devices in "adb devices". And, yes, my devices both have USB debugging turned on.
EDIT3: Seem to have gotten the devices to show up in the adb devices listing, but still not sure how to load the apps onto them automatically. Also, I tried running the "ant debug" command listed on http://developer.android.com/training/basics/firstapp/running-app.html and I'm getting an error of:
Buildfile: build.xml does not exist!
Build failed
Not sure what should be in the build.xml file as this is just supposed to be the tutorial app.
Usb does not need to be set up on ubuntu
you may need to switch adt from stable to beta see notes - that may work
reinstalling does not work.
I did the upgrade and adt broke completely - fails on WST or something like that.
Have a look at the tutorial at http://developer.android.com/tools/device.html
First make sure that you have the USB drivers. Make sure your Nexus device is set up for development. Load your drivers. It may be necessary to restart Eclipse to ensure that your new config takes effect.
You can start your AVDs through the AVDManager, or from Eclipse. Go to Run-> Run Configurations to set up which device to send apps to, or which emulator to start up.
1) Have you set your Application to debuggable? Also, don't forget to set your device up to USB Debugging mode.
Then try this at the terminal:
cd android-sdk-linux/platform-tools/
su
killall adb
./adb usb
2) Go to Run > Run Configurations > Target tab > Select your 4.1 AVD (on Automatically pick compatible device) and hit run. After that you will just have to click on run do test your app.