I don't have experience with Eclipse, but some time ago, I've followed some tutorials and I have successfully build 2 android applications. After 6 months of not using Eclipse, when I opened I had to make some updates, but my virtual devices doesn't start. I get the following message error:
Adb connection Error:An existing connection was forcibly closed by the remote host
Connection attempts: 1
I've tried the following, but the end results are the same:
- deleted and made new virtual device
- reset adb from DDMS
- adb kill-server from cmd
I assume that I didn't install the right packages in Android SDK Manager.
I am not sure what's causing you the problem but have you tried downloading the Android SDK from this link ? It includes Eclipse and the Android SDK you need to develop applications.
It is possible to make it work by getting first eclipse and after that install Android SDK aswell.
About your error I assume is a problem in system services as when you want to start an emulator it must start aswell a system process ... maybe that's not starting and in this case can be a problem with your Android SDK or it gets blocked in the background by your operating system (I'm not sure what's really happing though, this is a guess).
Can you please try this way. Sometimes adb is not working even emulator is started.
Please follow the below link.
how to detect the emulator in eclipse for android?
Related
I am using a brand new xamarin.forms solution generated with the flyout shell template in VS 2022 community edition.
When I open the emulator and follow the first time setup, where it generates a common android device I get this error when trying to launch the emulator. I also get this error when creating a device myself.
Unknown AVD Name Error <- This part has been fixed by setting the ANDROID_SDK_HOME variable to the correct directory in the Environment Variables in system settings. But the emulator can still not be used for debugging.
I have tried looking around for solutions on all sorts of forums to get the emulator to work, but didn't find anything that made a difference.
I have tried running on a local device using USB instead as it was suggested that it was easier to get to work then the emulator, which didn't work either. The device does not show up in the Android Emulator drop-down menu. I then tried different cables and it still did not show up as a detected device.I then tried via wireless connection just in case something was up with the cables. It still doesn't show up. But if I check the devices through the adb command prompt I can see the device is connected and authorized, both when using the cable and when using the wireless connection. And the computer itself detects the device just fine.
The Device is in developer mode.
USB debugging is on.
The computer is approved as a trusted device.
Android project is set as start up project.
SDK's and tools have been downloaded using the Android SDK manager.
USB drivers have been downloaded for the device.
I have already tried
closing and opening VS multiple times.
Unloading and reloading the project.
Setting the device to PTP mode instead.
Reinstalling VS including deleting and regenerating the Java and Android folders.
Uninstalling VS 2022 and trying 2019 instead.
Generating a new VS solution.
downloading and installing the JDK manually.
Seeing that Virtual emulation is on in the BIOS.
Making sure the system is able to run Hyper-V and that it is on.
checking that the folder paths are set correctly in the options menu.
Making sure all nuget packages are up to date.
Any suggestions would be highly appreciated as I cannot debug and test the device properly at the moment.
If you see an error about a failure to install the APK on the emulator or a failure to run the Android Debug Bridge (adb), verify that the Android SDK can connect to your emulator. To verify emulator connectivity, use the following steps:
Launch the emulator from the Android Device Manager (select your virtual device and click Start).
Open a command prompt and go to the folder where adb is installed. If the Android SDK is installed at its default location, adb is located at C:\Program Files (x86)\Android\android-sdk\platform-tools\adb.exe; if not, modify this path for the location of the Android SDK on your computer.
Type the following command:
adb devices
If the emulator is accessible from the Android SDK, the emulator should appear in the list of attached devices. For example:
List of devices attached
emulator-5554 device
If the emulator does not appear in this list, start the Android SDK Manager, apply all updates, then try launching the emulator again.
Update:
you can open the Android Device Manager first.
Select the device you want to run and click the Start button, so that the virtual machine can be started and detected, and then your virtual machine The device will be added to the Android Emulators menu.
I ended up wiping the hard-drive and starting from scratch. This time all I had to do was install VS and enable Hyper-v and everything worked as it should right away.
I have absolutely zero idea what caused this issue, but a complete wipe fixed it.
I installed Microsoft's Android Emulator from here which can now work without disabling Hyper-V on Windows 10. I was following the instructions in this post and everything was working smooth until yesterday. I was successfully able to debug my app in MS android emulator.
Today morning I closed the emulator and started it again. Now, When I start running the app to test it then the MS Android emulator is not showing up in Select Deployment Target window of Android Studio as below. Nexus 5X API 28 emulator visible under Available Virtual Devices is Google's Android emulator which doesn't work with Hyper-V enabled due to reasons mentioned here.
I've already launched the MS Android simulator and it is up and running:
I can see it running in Hyper-V as well as shown below:
Not sure what happened suddenly and it stopped working altogether. Can anyone suggest me the reason behind it or I'm missing something?
If it didn't detected by IDE, try to rerun the emulator and check if it is detecting again or not.
Also, you can try this too:
Tools -> Android -> Enable ADB Integration
If it is already enabled, try to disable and re enable it, seems like this works most of the times.
EDIT: You may want to check:
https://stackoverflow.com/a/38788436/4409113
Changing the value Path then running following commands:
adb kill-server
adb start-server
Might help.
I happened to resolve it by chance. Sharing my experience in case it helps someone in future.
Initially what I was doing is as below:
Start Visual Studio Emulator for Android application which contains the list all the device profiles.
Choose an appropriate device profile and install it.
Run the installed profile and launch the emulator.
Start Android studio, open the project and launch the app.
I simply reversed the above steps to resolve my issue. First close everything including Android Studio, emulators, device profile window etc.:
At first, start Android studio, open the project and hit Run app button to show Select Deployment Target window.
Now, start Visual Studio Emulator for Android application which contains the list of all the device profiles.
Choose an appropriate device profile and install it.
Run the installed profile and launch the emulator. Wait for the Android operating system to get started fully.
The Connected Devices section in Select Deployment Target window would refresh on its own to start showing Microsoft's Android Emulator.
The adb.exe can be seen as an infected file by antivirius software. So need to exclude once reinstated.
I have been working on a particular Android application for sometime and have been able to run these apps via Android Studio quite fine before but since applying a recent update I have not been able to run the app via Android studio because of the following error:
android.os.TransactionTooLargeException
Error: Could not access the Package Manager. Is the system running?
I have tried to troubleshoot this issue by connecting via a different TCP/IP instead of through USB (thinking it was a cable fault of sorts), reinstalling ADB, removing the ADB driver and restarting Android Studio, and all of the above yielded the same error when trying to run the app from Android Studio.
The update that was applied was the addition of the YouTube Android Player to a fragment. The fragment that contains YouTube Player was added to FragmentManager of the parent Activity during the onCreate method of this fragment. Could this be the problem? Or am I looking in the wrong place
Any insight would be appreciated.
You may have gotten this error while attempting to run an Android application on an emulator or device using Android Studio. The most common cause of this error is simple as stated in this link: You have to manually unlock your Android Virtual Device by swiping the "lock" icon on the screen. Security measures prevent the emulator from letting you connect the debugger before doing this. Make sure also that you are running Android Studio version above 0.3.2 or the latest version. There was some issue reported in AS 0.3.2. You can update it from Help >Check for update.
Found this thread which states that it might be an issue with your emulator not with Android Studio. Maybe you are trying to install application before even the emulator started properly. Wait till the home screen appears in the emulator before trying to install any application.
Also try to install any apk in Emulator from command line
Steps to install
Go to $Android_SDK_DIR\platform-tools, right click there keeping shift key pressed and Chose "Open Command Window here".
Run command adb devices to make sure yout emulator is running properly. It will show all your running emulators.
Now if emulators are showing properly, type the command adb install YOUR_FULL_APK_PATH , YOUR_FULL_APK_PATH is of any .apk
file path in your system.
You need to wait for the emulator to full start which may take a few minutes. Once it is fully started (UI on the emulator will change), it should work. You will need to restart the app after the emulator is running and choose the running emulator when prompted. You can check on this bug report the full details.
Hope this helps!
I'm not sure, but check if this works.
menu>> tools>>Android>>Enable ADB integration check it
this is more of a benign bug in android studio. Whenever I wake my computer from sleep or hibernate the connection between the emulator and android studio is not proper and I have to restart the emulator and try again, so as a result of that (I think) all the dead emulators are always shown in the listing when trying to run the app.
And FYI I don't usually restart/shutdown my computer (once in 10 days or so). I was just wondering if there was a way to fix this bug without having to restart the computer.
Screenshot of problem
Thanks in advance!
I am having the same issue using Windows 10 hibernate.
Try terminating the adb.exe process in the task manager. Sometimes you will find two or more adb.exe processes, kill them all. Then close all running emulators (if any) and disconnect all physical devices.
You don't have to restart android studio or eclipse.
After dong this, all unknown/null emulators should be gone (at least in my case).
Did you open multiple android studio and use the terminal in android studio?
you can close all android studio, and restart them. the unknown emulator will be gone
I've looked at tons of similar questions on here but all of them either had a different issue (installing the .apk actually failed) or the solutions which worked for them have not worked for me, so I apologize if this question seems like a repost.
The issue I am having is that when I try to run an android application on an emulator in eclipse the apk never gets installed. The emulator itself works fine (all the default apps function properly, settings are correct, etc.) but the app I am trying to test is never installed onto the "phone." It never shows up in the app list or launches, and I never get a confirmation that installation completed. (The run configuration is set to launch the app)
Here is the relevant console output, with some names changed:
[2011-10-19 10:54:45 - dining-android] Android Launch!
[2011-10-19 10:54:45 - dining-android] adb is running normally.
[2011-10-19 10:54:45 - dining-android] Performing <src path>.Main activity launch
[2011-10-19 10:54:45 - dining-android] Automatic Target Mode: using existing emulator 'emulator-5554' running compatible AVD '1.5test'
[2011-10-19 10:54:45 - dining-android] Uploading <appname>.apk onto device 'emulator-5554'
[2011-10-19 10:54:59 - dining-android] Installing <appname>.apk...
It doesn't seem to make a difference whether I start the emulator manually and then try to run the app or if I run the app and let it start the emulator automatically, it will never go past this step. I left it running for about 8 hours (overnight) and nothing at all changed. The app is designated for the same version of android as the emulator runs, and everything looks correct in the settings of the emulator and eclipse as far as I can tell, except it never completes the installation of the app.
Does anyone know why this would happen? I've tried restarting adb, using different versions of the emulator and/or app, changing the default run configuration, and various other solutions I've come across on the internet which didn't seem to have any effect whatsoever. I'd really appreciate some help on this if anyone has run into something similar.
EDIT: I just tried using the "adb install" command in the command line on the .apk of the app while the emulator was running and it was also unsuccessful. I don't know whether this is related or another issue entirely.
EDIT2: Command line install using "adb install" functions properly. However, eclipse still can't manage to install the app. Anyone know what might cause this?
I had the same issue when I tried to run my android app in a device. Eclipse went to 100% of CPU usage and it did not respond anymore. I had to kill Java processes to close eclipse every time that I ran the app. As part of the workaround I removed android plugins from eclipse, updated my android binaries in my box and installing a fresh new eclipse . I killed adb server and restarted it several times. After all of that I had the same issue.
The solution came when I tried with another phone and voilà... magically the problem was gone. I had been trying with a Samsung SIII(GTI9300 - OS 4.1.2) there was some issue with that phone because when I tried with a different phone Razor-I(XT890 - OS 4.0.4) . I used other SIII(GTI9300 - OS 4.1.2) and it worked too. Maybe the solution is not the best but was effective for me. If you have no chances to change the phone I recommend you to dig out in the configs of your phone with android binaries outside of eclipse.
I hope this helps.
I had this problem before, I don't remember how I resolved it though (it was a while ago).
I personally suggest reinstalling the sdk and the ADT plugin, and make sure you're following the steps on the developer website. I'm not sure what signing the package has to do with eclipse not installing it on your phone or the emulator -- it only needs to be signed if you're going to have it up on the market (or if you're trying to install it on non-developer mode phones).
Another thing you could try is building a new android project (like a simple hello world app) and trying to install that. If it doesn't install then you're having an issue with eclipse and/or the sdk.
Also you could just completely wipe out eclipse and the sdk, and start from scratch. (Again, follow the directions on the android developer website...)
http://developer.android.com/sdk/eclipse-adt.html
http://www.eclipse.org/downloads/packages/eclipse-ide-java-developers/indigosr1
Good luck
I was fighting with same issue today.
And thanks to eplewis89, he was suggesting right things.
For me the problem was in ADT. I've updated my ASDK to highest version and ADT started to yell about it's compability and suggested to update itself too. But I chose only some parts that I thought will be enough to develop. Really this mistake cost me half of a day.
Help -> Check for Updates and update of all ADT stuff solved the problem.
I also had this issue. I tried everything I could find on the net and none of it worked for me.
It's not the solution you want to hear, but what worked for me was abandoning my Eclipse Helios install and laying down a fresh Eclipse Indigo install and then installing Android Dev Tools.
I ran into this after a crash and there was an emulator process that was still running in the background.
The solution for me was to kill adb (using ps -ef | grep adb and kill) and any running emulators (using ps -ef | grep avd and kill). Then I restarted adb:
cd /path/to/android-sdk-linux/platform-tools
./adb start-server
Go to Android\android-sdk\platform-tools in cmd and type command logcat
Then try to install the apk on the emulator again and paste the log here