I'm creating an application in android studio but I am um able test it on the virtual emulator because the adb process won't start. It's giving this error.
I tried manually starting adb and all other things but this happens.
I tried reinstalling android studio and platform tools. I downloaded a separate adb and ran "adb start-server"/"kill server".
It just doesn't seem to work. So i constantly have to build the entire thing and generate apk to run it. Please help me guys!!!
Also regarding the virtual emulator i have intel haxm installed if that information was necessary.
It's may be because your emulator adb not allow the android studio to run on it and android studio try to stop and re-run but this process fail.
Me also the same problem. So i always follows this step and it's work for me.
1. Open android studio.
2. Try to run your app without opening your emulator(It will start your adb).
3. Then open your emulator and run your app.
It's working for me. May solve your problem.
adb server didnt ack. This issue will resolve ussually when you kill all instances of adb.exe and restart server again.
Open Task manager and kill all adb instances and start server again.
Try the following:
Close Studio.
End adb.exe process in taskmanager.
Issue kill and
Run adb kill-server
Run adb devices
Then start the emulator and try adb devices again. This should list your emulator-device.
Run you apk in studio.
If your are using Genymotion,try to link your Android Studio 's SDK to Genymotion Android SDK Path.Then try to type with adb devices, I hope this will help for you.
I am a newbie and want to learn android. However, I face difficulties during installation of android studio.
I have installed android studio correctly but when I want to run a Hello World in my android device, it shows
ADB not responding. If you'd like to retry, then please manually kill
"adb.exe" and click 'Restart'
I have searched it from the Internet but it still cannot solve the problem, what can I do to solve it?
I've found the answer to this. This had been plaguing me for days, but so happy to have this fixed.
When I go to task manager the process adb.exe was constantly restarting itself. This is what was causing the issue (for me).
Go to Tools -> Android -> Enable ADB entegration. Untick this. Make sure its status appears as unticked. Now go to task manager and killed the process adb.exe, it will not restart itself this time. Now click run, hey presto, ADB runs. Whoop de doo.
Here is what worked for me on Ubuntu:
I simply removed the file /tmp/adb.log
sudo rm /tmp/adb.log
Hope it helped.
Cheers.
You should first try stopping adb and then restarting it.
Use this command:
adb kill-server
followed by:
adb start-server
On Mac OSX: If the adb process needs to be killed, you can use ps to show all processes with the following command, (pipe through grep to find it easier)
ps aux | grep adb
You can kill it with the following command, using the process id of adb from the previous ps command.
kill -9 <process id>
you need platform-tools_r23.0.1-linux.zip . Url for it from google's repository is:
https://dl-ssl.google.com/android/repository/platform-tools_r23.0.1-linux.zip
Go into your android-sdk-linux directory, I deleted the platform-tools directory (but I think that's unnecessary) and unzip'ed the platform-tools zip there. The SDK updater correctly shows 23.0.1 is installed at this point.
all will work properly
one can find detailed discussion about this issue here
I had the problem because the project was not built and showed an error as follows
Error:Error: Cannot run program "/path/to/Android/Sdk/build-tools/21.1.2/aapt": error=2, No such file or directory
I solved the problem by running those commands
sudo apt-get install lib32stdc++6
sudo apt-get install lib32z1
Ubuntu can't run the aapt on 64 bit before installing this packages
Thanks to https://stackoverflow.com/a/27734148/2119981
I solve the problem.Open cmd and input netstat -aon|findstr 5037 .if there is a process uses the port.You should kill it.You can get the pid and find the process in Task Manager.
I Battled with this problem for a couple of days (nearly drove me nuts) and every solution I found failed to help me. Till I tried this:
(On Mac)
I uninstalled Android Studio (moved it from Applications to Trash).
Restarted my Mac.
Reinstalled Android Studio (moved it back from Trash to Applications).
And everything was back to normal.
I didn't find adb.exe in the task manager so i did the following and it worked fine after that
I closed the emulator and removed my phone.
restart the windows.
connect the usb device and then i run the application.
Go to Tools -> Android -> Enable ADB entegration
untick it and press run ( you will get an error) now re-tick it and press run and it will works.
Open "Android Monitor" window at the bottom of Android Studio, there will be some error info of the problem.
And my problem hint is "no permission to access /tmp/adb.1001.log".
Just remove the file, the problem will been resolved.
I've spent days trying to launch any Android program. Even "Hello World" gives me the same error:
"The connection to adb is down, and a severe error has occurred".
I'm running Eclipse v3.5 (Galileo), Google APIs 2.2.8, on a Windows XP machine.
I've used all the tricks I can find on the web: the command line "adb kill-server", the DDMS "reset ADB", I started the emulator both before and after Eclipse, and searched for ports being used by other programs.
What is going on here? Is there a magic combination of versions of Eclipse, Java, ADB, emulator, and whatever else that works?
Try the below steps:
Close Eclipse if running
Go to the Android SDK platform-tools directory in the command prompt
Type adb kill-server (Eclipse should be closed before issuing these commands)
Then type adb start-server
No error message is thrown while starting the ADB server, then ADB is started successfully.
Now you can start Eclipse again.
It worked for me this way.
Restart your phone as well!
Use:
Open Task Manager → Processes → adb.exe → End Process → restart Eclipse
This worked for me.
And:
Open Task Manager → Processes → eclipse.exe → End Process → restart Eclipse
Open up the Windows task manager, kill the process named adb.exe, and re-launch your program.
[2012-07-04 11:24:25 - The connection to adb is down, and a severe error has occurred.
[2012-07-04 11:24:25 - You must restart adb and Eclipse.
[2012-07-04 11:24:25 - Please ensure that adb is correctly located at '/home/ASDK/platform-tools/adb' and can be executed
I realized the folder of the project in Eclipse was closed. I expanded the directory and the project launched. I know this may sound like a "no-brainer". I had the .java files open on the workspace, and that was enough to make me think the project was open.
I tried this using Eclipse Juno and it worked fine:
From the dropdown of the Run icon, select option Run Configuration.
Make sure your project is selected
Go to tab Android
Under section Launch Action, select Launch Select the package name
and voila! try running your application.
UPDATE: It also helps to kill the process adb.exe from the task manager and restart it. adb.exe can be found here: Android\android-sdk\platform-tools.
Good luck
Update your Eclipse Android development tools. It worked for me.
Make sure it's not running in the task-manager processes. If so, end the process and then start it from a command prompt as in a previous answer. This worked for me.
In my situation: I have the same warning:
The connection to adb is down, and a severe error has occured
I have found the solution:
The adb.exe was moved from: android-sdk-windows\tools\adb.exe to
android-sdk-windows\platform-tool\adb.exe.
Only thing. Move file adb.exe to \tools. And restart Eclipse.
I know this question has already been answered, but thought I might add that I found the problem to be folder permissions on my android-sdk directory.
I tested it out by granting Full Control to Everyone (dodgy, I know...), and the problem went away. I am not sure yet what the specific mix of permissions might be that it was looking for, but I assume some or other service in Eclipse didn't have execute permissions on adb.exe. That said, I'm a complete noob to this - just wanted to put it out there in case someone else had some insights into this.
I am running Windows 7, 64-bit, 4.2.0 Eclipse, and 20.0.0v201206242043 ADT.
Go to the folder platform-tools in cmd folder platform tools available in the Android folder where you have Android backup files.
Type the following
adb kill-server
and
adb start-server
then type
adb devices
adb kill-server
You can now see your device.
This problem has been plaguing me for days until I finally figured out what was causing it. It got so bad I couldn't even update my apps even after trying all the above suggestions.
HTC Sync also runs a process called adb.exe. HTC Sync is an optional program available when installing the HTC USB driver. I had recently updated my installation of the HTC bundle and apparently hadn't installed HTC Sync before. Checking properties on adb.exe in the Task Manager showed it to belong to HTC Sync, not Android.
As soon as I uninstalled HTC Sync from the control panel the problem disappeared! (It's listed separately from the USB driver so that can stay.) I never saw more than one instance of adb.exe running. I'm curious to know if people having to kill the process from Task Manager, check to see if it's actually the Android process you are killing?
Please read user comments (I too have a HTC Thunderbolt):
http://www.file.net/process/adb.exe.html
Simply go in Task Manager (windows users) and kill the abd.exe (it is remaining active somehow).
After that start Eclipse.
The error
"The connection to adb is down, and a severe error has occured"
happened after installing plugin for Android of Netbeans. After closing Netbeans the process abd.exe remained active. When you want to start again Eclipse ... you will get the error.
You have to manually kill the adb.exe and then start Eclipse.
It worked for me.
I had the same problems, and it turned out that my antivirus program (Comodo) sandboxed the adb.exe, and that is why it didn't work. I closed the antivirus, and it worked just fine. Consider that.
My problem was that my firewall was preventing ADB from binding to the port it wanted to.
I had the same problem
I entered Task manager -> find adb.exe -> end process
Go to the Android SDK tools directory in Command Prompt double click adb.exe
That's all
I am running Eclipse Neon2. on Mac OS 10.12.4 and I experienced this issue after recently upgrading my Android SDK to the latest "SDK Tools" (v 25.2.5), "Platform tools" (v 26) and "Build Tools" (v 26) and moving one of my development projects to Android Studio.
Unfortunately none of the many answers here worked for me.
What did work was to create a separate copy of the Android SDK in a different folder and then point Eclipse to it via "Preferences --> Android". You will have to use an older version of the SDK as indicated in this SO answer.
Once you've downloaded the separate version of the SDK and put it in a different folder than your main Android SDK, launch the SDK Manager (via <separate-sdk>/tools/android) and install the required "Platform tools", "Build-tools" and Android versions. There are two important things to observe here though:
Make sure that you do not upgrade your "SDK Tools" beyond the version that's already installed!
Make sure that you install a version of the "Build tools" that is less than 26!
Otherwise you may run into this issue.
Go to the tools folder of your Android SDK
Run emulator.exe -avd <your avd>. It will take some time for the emulator to run.
Once you see the homescreen on your emulator, open Eclipse and run your program again...
I had a similar problem. I found out that there was another adb.exe running which was started from BirdieSync (Sync Tool for Thunderbird). I found out with Process Explorer from Sysinternals, that Windows was running another incompatible adb.exe. Just put the mouse cursor above the process (in Process Explorer), and you'll see which adb.exe is started.
I had to kill the BirdieSync process as well, because it started the wrong adb.exe again.
Then I could start the right adb.exe, and it worked fine.
The killing of the mysteriously running abd.exe worked. This sudden roadblock stopped me for a long time. I was doing all sorts of command line stuff and removed the lock icon from my user folder, but nothing worked until your simple suggestion of looking for the abd in the running processes of the task manager and killing it.
Another newbie roadblock I discovered an answer to: don't run Eclipse when any file other than the main .java file is active. If you run it when, for example, the main.xml file is active, you will get unhelpful error messages, an odd file created like main.xml.out, and it wont run.
I found the path of the SDK (Preferences* → Android → SDK Location) was the cause. My SDK path was the following:
C:\Program Files (x86)\Android\android-sdk
The spaces in the path is the problem. To get it to work, you must change Program Files (x86) to Progra~2
The complete right path is C:\Progra~2\Android\android-sdk.
Now it should work.
The previous solutions will probably work. I solved it downloading the latest ADT (Android Developer Tools) and overwriting all files in the SDK folder.
http://developer.android.com/sdk/index.html
Once you overwrite it, Eclipse may give a warning saying that the path for SDK hasn't been found, go to Preferences and change the path to another folder (C:), click Apply, and then change it again and set the SDK path and click Apply again.
Close Eclipse
Use this in the terminal:
sudo killall -9 adb
Run Eclipse.
If you are using the Genymotion emulator:
Make sure that the SDK path used for Genymotion is also the same path used for the Eclipse.
This error also occurs if those two paths are different.
I've tried the above methods, end the adb process through task manager and all, it didn't work. But when I ran the adb.exe file as admin it worked fine.
Here is a script I run to restart adb (Android Debug Bridge) server:
#!/usr/bin/env bash
## Summary: restart adb (Android Debug Brdige) server.
## adb binary full path
ADB_BIN=./adb
if pgrep adb >/dev/null 2>&1
then
echo "adb is running"
echo "terminating adb ..."
$ADB_BIN kill-server
if pgrep adb >/dev/null 2>&1
then
echo "did not work"
echo "kill adb processes by killall"
killall -9 adb
else
echo "terminated"
fi
else
echo "adb is not running"
fi
echo "starting adb ..."
$ADB_BIN start-server
echo "adb process:"
echo `pgrep adb`
echo "done"
# END
Last time I faced this problem, was solved with adb restart. If you have tried adb kill-server and adb start-server with no luck you might want to try this. When again I faced the same issue I tried all the above answers, with no luck, and this was the last option to try. It did work like a charm.
Goto Android SDK Manager >> Install the essential packages.
maydenec is correct (in my case...). The file was moved.
I even found this file:
C:\Program Files (x86)\Android\android-sdk\tools\adb_has_moved.txt
Which explained this issue.
Suggestions in this file:
Install "Android SDK Platform-tools".
Please also update your PATH environment variable to
include the "platform-tools/" directory.
It worked for me to start my AVD emulator first (from the AVD manager), and then to run my program. The other stuff mentioned here.
(Restarting the ADB server didn't work though.)
Eclipse → preferences → Android → NDK
Check the "NDK Location" path is set correctly, and use the browse button to set it.
AndroidSDK → Platform Tools → Kill did not work.
But after restarting my computer, it worked.
When I launch the emulator I face many problems (Errors):-
HttpConnectionApp]emulator-5554 disconnected!
Cancelling 'net.paxcel.http.HttpConnectionApp activity launch'!
Emulator]emulator: ERROR: the user data image is used by another emulator.
aborting
Each time I have to re-run it but all in vain.
How can I improve this so that I can re-run the application on same AVD?
I had the same issue after my computer locked up and I had to power cycle it.
Wiping the user data didn't fix my problem, I had to delete the following folders manually
C:\Users\%UserName%\.android\avd\AVD2.1.avd\cache.img.lock
C:\Users\%UserName%\.android\avd\AVD2.1.avd\userdata-qemu.img.lock
A quick-fix that obviously works is to restart the adb server each time this error occurs:
adb kill-server && adb start-server
Then, you simply run the application again (without restarting AVD) and that's it.
Run configurations → Target → Wipe user data → Run.
It fixed the problem in my case.
Here is the answer that helped me:
link text
Another solution for me is start the avd manager and start once emulator from there. After that everything turns to normal.
AFAIK, this happens when an emulator is started, but the Android Debug Bridge couldn't establish connection to it.
If you have just started the emulator with your application, watch if you get Waiting for HOME to launch... or something similar in your Console.
If you don't get that message, but the emulator has been started, chances are, you'll get into the ERROR: the user data image is used by another emulator situation again.
emulator: ERROR: the user data image is used by another emulator. aborting
Tried restarting the computer as I had done a lot of messing around earlier but no joy same error.
Went to shut down ADB so as I'm on XP I run > cmd then paste in > cd C:\Program Files\Android\android-sdk\platform-tools (the location of the location for the ADB on XP)
Tried
adb kill-server && adb start-server
Then moved the directories cache.img.lock and userdata-qemu.img.lock in the C:\Documents and Settings\.android\avd\ to a New folder (instead of deleting)
This worked fine.
Delete the existing emulators and then make a new one.
This worked for me, when I had this problem and couldn't find the folders to delete.
Under Run Configurations --> Target --> Add Command Line Options add this
adb kill-server && adb start-server
every time running your App will kill-restart the adb server.
It's probably a bad install of ADT. Try uninstalling the plugin, restarting Eclipse, then installing it again fresh.
That of you aren't letting the emulator boot all the way up and are closing it before ADT/ADB can install/run your app.
Please set wipe_data for emulator
Use same instance of application (after modification if any) to avoid error you are getting.
This can also happen if you're using a network share as your home folder, because some network file sharing systems may lock the image files.
Delete the directories cache.img.lock and userdata-qemu.img.lock (in my case these files are in /mylocalusername/.android/avd/avd7.avd
Thanks for this! Just to add for some people who develop in Windows XP.
The path to the avd directory can be C:\Documents and Settings\.android\avd
Thanks again for the answer! :)