Develop Reference

Running "adb shell" restarts ADB

I am using Android Studio 2.2.3. Everything is up to date.
Running "adb shell" on Terminal in Android Studio generates the following:
adb server is out of date. killing...
* daemon started successfully *
error: device not found
To reconnect the device, I have to run "adb kill-server" first.
This makes running shell commands impossible.
Could anyone offer a tip on how to fix this?

From Android Studio Terminal run
$ $ANDROID_HOME/platform-tools/adb shell
this ensures you will be using the same adb.

adb cannot bind 'tcp:5037'

It used to work fine, but today after I connected my Android phone to my machine, and run adb devices, I got the following error:
* daemon not running. starting it now on port 5037 *
cannot bind 'tcp:5037': Address already in use
ADB server didn't ACK
* failed to start daemon *
error: cannot connect to daemon: Operation timed out
How to solve this problem? (I am using a MacBook)

Try with following commands
Find port details by List Open Files lsof command.
sudo lsof -i :5037 and find PID and kill it.
kill -9 <pid here>
Example: kill -9 4363
Then start adb server. adb devices command.

Kill the Adb server and restart.
adb kill-server
adb start-server

I managed to solve this problem on MacBook by first running the following command to list the process which is using port 5037
lsof -n -i4TCP:5037 | grep LISTEN
Then, I kill it:
kill -9 <PID>
Then, adb devices works!

Android Studio Terminal
$ adb devices
List of devices attached
adb server is out of date. killing...
cannot bind 'tcp:5037': Address already in use
ADB server didn't ACK
* failed to start daemon *
error:
error:
OS Terminal
$ adb devices
List of devices attached
adb server is out of date. killing...
* daemon started successfully *
Finally test again at the IDE terminal
$ adb devices
List of devices attached
GL

it is clear that Address already in use. busybox netstat -antp to check who is using the port.

I've fixed the problem by updating the Android SDK.
android update sdk --no-ui
Additionally, I've updated the Platform Tools to the newest version.
If this doesn't work, redownload android sdk.
wget http://dl.google.com/android/android-sdk_r24.2-linux.tgz
tar -xvf android-sdk_r24.2-linux.tgz cd android-sdk-linux/tools
install all sdk packages
./android update sdk --no-ui

I tried it at the OS Terminal, worked.
Try on the OS terminal first

Running the following command at the OS bash helped solve the issue:
sudo adb start-server

I ran adb kill command and then it started working fine
adb kill-server
adb start-server

Android ADB - Daemon still not running [duplicate]

This question already has answers here:
adb cannot start daemon, CreateProcess failure, error 2
(7 answers)
Closed 4 years ago.
Quick Note: I am in the Android SDK "platform-tools" directory.
My problem seems to be a bit of a weird one - Whenever I start ADB with adb start-server, I get the following:
* deamon not running. starting it now on port 5037 *
* daemon started successfully *
Well, Great. It started successfully. Now I try using adb shell:
* deamon not running. starting it now on port 5037 * What??? I thought it already started...
ADB server didn't ACK
* failed to start daemon *
error: cannot connect to daemon
Well, Crap. So I open Task Manager and kill adb.exe. Then I run adb shell (without running adb start-server first).
This time I get:
* deamon not running. starting it now on 5037 *
* deamon started successfully *
** deamon still not running **
error: cannot connect to deamon
So, As a brief summary - here is what I have tried:
Rebooting my PC
Rebooting my Phone
Executing adb shell
Executing adb start-server and then executing adb shell
Killing ADB and Executing adb shell
Killing ADB and Executing adb start-server and then executing adb shell
Reinstalling my phone's USB Drivers
Checking port 5037, It is not in use by any other application, and only becomes used by adb.exe when I start the daemon.
Am I missing something obvious? Help me please :P
EDIT: Solution on another question: https://stackoverflow.com/a/29524143/2872279

This worked for me using windows 10.
Open up task manager
Find adb.exe and end its process

Check that you have the correct USB drivers for your Android device installed (they should either include or be downloaded with an ADB driver).
If you haven't installed platform-tools, you need to do so. You can get a copy from the Android Developer's website: https://developer.android.com/studio/releases/platform-tools
If this was already working for you and it has recently stopped, on Windows - try reinstalling the driver and/or checking that the device is actually recognised. You can do so by running devmgmt.msc with + R or from command prompt.
It might be worth just checking that your USB cable is not damaged - ideally try connecting your phone to another computer or with another USB cable. This has been an issue more times than I would care to admit.

check port 5037 is using (another process)
or adb.exe is running (task manager), if running kill process.

Adb kill-server not responding?

In ADB, I am facing an error when I am trying to print the version with
padmakumar#padmakumar-desktop:~$ adb version
Android Debug Bridge version 1.0.29
but its showing below error
padmakumar#padmakumar-desktop:~$ adb devices
error: protocol fault (no status)
NOTE: adb kill-server is not working i.e it's not responding.
and in my Eclipse console I am getting this error:
Android Launch!
[2012-01-09 20:31:28 - Shopping List] The connection to adb is down, and a severe error has occured.
[2012-01-09 20:31:28 - Shopping List] You must restart adb and Eclipse.
[2012-01-09 20:31:28 - Shopping List] Please ensure that adb is correctly located at '/home/padmakumar/android-sdk/platform-tools/adb' and can be executed.

I also came across the same error when I was trying to install one app in emulator. You need not restart PC to overcome this. Just kill the server. if 'adb kill-server' is also not working, kill the process (adb.exe) through task manager. There you go!!

Task Manager -> Process -> adb.exe -> End process
That worked for me.

If zombie adb process is not the issue i.e. there's no adb.exe in the task-manager list, the problem is usually adb ports e.g. 5555, 5554, 5037 etc., being taken by other applications.
Solutions:
On all Windows: find the process taking one of those ports using netstat -bn and kill it from task-manager Ctrl+Shift+Esc is the shortcut.
On Windows 7 and 8: there's this new tool called Resource Monitor. It'll also allow you to find out the blocked port and blocking process under the network tab.
On Linux: the similar is done with netstat -pn. Feel free to use your grep foo as needed and kill the blocking process with kill or pkill.
Change Default ADB Port: Apparently default ADB port can be changed as described here by setting up an environmental variable before launching ADB. Give it shot. It'll allow more flexibility if you don't want to kill the blocking processes.

navigate to adb.exe folder
shift + right click inside the folder
start commandline from here
unplug any android device connected to your PC
type "adb.exe wait-for-device"; press Enter
connect your device; wait for commandline to finish
done

adb kill-server did not work on my Linux computer
First, I used ps -ef | grep adb and killed all adb deamonswhich did not solve the problem.
Then I usedps -ef | grep javaand saw a process that was blocking theadb`.
Upon killing that process, adb worked perfectly.
Maybe this process can be helpful for someone.

On trying to kill multiple adb.exe processes from windows Task Mgr it said "Access is denied". On Windows 7, Resource Monitor allows those adb.exe processes to be killed.

install following packages
sudo apt-get install lib32z1 lib32z1-dev lib32stdc++6
if you are using Genymotion then set path of Android SDK in its settings.
ref :http://www.intellicode.in/adb-not-responding-wait-more-or-kill-adb-or-restart/

Install again ADB.EXE in your SDK path like
Steps :
1)Close Your Android Studio
2)Fine path in Your Computer->[drive][your SDK path]\Sdk\platform-tools
3)Replace this path at adb.exe File or Download again if not updated adb.exe File.
4)Click on adb.exe if the command prompt is open and details see and then close automatically then its work. OR if any error occurred or not start adb-server again replace this file .
5)Now successfully run your adb-server open android studio and connect your device after Developer Option ON .

If using the "kill-server" parameter doesn't work you will have to kill the process itself.
In case you use GNU/Linux you have to use the command "ps aux|grep adb" to find the pid of the adb proccess, or directly with "pidof adb" and then "kill PID" where PID is the pid number of the adb process. This should also work with Macintosh and other Unixes (although the parameters of the "ps" command may be different)
In Windows just open the task manager to and kill the adb entry in the proccesses table

From James Tan's answer:
After investigating for a long time, finally i found out that adb
daemon keep restarting. and it is because my chrome have enabled
android debugger. In chrome address bar, open:
chrome://inspect#devices, then uncheck Discover usb devices.
Next:
Open Power Shell as administrator
cd C:\Users\PC01\AppData\Local\Android\Sdk\platform-tools
./adb kill-server
./adb start-server

Adb won't start

Running Vista, tried starting adb from shell as admin get daemon not running starting it now
ADB server didn't ACK
* failed to start daemon *
Any help for this?

This problem has annoyed me for a long time. In addition to the above answer, use these tips:
Create a bat file with the following and run it. This bat file will solve most of your adb problems.
tskill adb
cd \tools\
adb kill-server
adb start-server
ddms
Use the command netstat to monitor the state of connections (adb uses 5037)
If the bat file doesn't work try: disconnect-reboot phone-connect. (hint: use `adb reboot' if adb is responding at all, if not do it the old fashioned way)
Sometimes Windows can be funny. Reboot the machine.
Turn on USB Debugging Mode
Download the Android SDK and unzip
Uninstall all "Android *" from Device Manager
Do an "Add Hardware" from Control Panel, choosing "Install the hardware...
(Advanced)"
Select "Android USB Devices" and click "Next"
Click "Have Disk" and enter the path where the SDK was unzipped
Still not working ? Factory reset the phone.
MTP detection delays ADB. Sometimes you if need boot time logs you may have to disable the MTP driver in Device Manager (Windows)
This is a brilliant patch for adb when you get the error :
Adb connection Error:An existing connection was forcibly closed by the remote "

I was unable to use adb. I got the following error, both on the command line and in eclipse.
* daemon not running. starting it now on port 5037 *
ADB server didn't ACK<br>
* failed to start daemon *
That is, adb start-server failed even after rebooting. To diagnose the problem, I found that you can run adb with the following arguments:
adb nodaemon server
And it will print out the reason that it cannot run. In my case, it was a blank line in the adb_usb.ini file.

You may have a stuck copy of the adb daemon in memory. Try removing it with Task Manager, or reboot, and see if that helps.

For whoever is using Android Studio and MAC. This is what worked for me:
In Android Studio: Tools -> Android -> Uncheck "Enable ADB Integration"
In terminal: "adb kill-server"
In Android Studio: Tools -> Android -> Check "Enable ADB Integration"
In terminal: "adb start-server"

The top answer is Windows-specific but this has a decent amount of Google visibility, so if you're running a *nix-like machine (I'm on a Mac), the steps are similar:
$ killall adb
$ cd <PATH_TO_SDK>/platform-tools/
$ adb kill-server
$ adb start-server
Or, if you're like me and just want to access adb no matter your current directory, add
export PATH=${PATH}:<PATH_TO_SDK>/platform-tools/
to your ~/.bash_profile.

> killall adb
> adb start-server
Restart Eclipse.
Basically adb is running on another process on your box, and you need to kill it, and start up the daemon again, since they're both trying to bind to the same port (:5037). In my case, I had another window open to :5037, and forgot about it. Wondered why I couldn't stop and start as usual. By going "killall" you make sure you're terminating all processes. You can also go into the CPU's processes and force quit.

adb nodaemon server
helps. In my case, I had edited ~/.android/adb_usb.ini, and added 0x1949 at the end to enable debugging on the Kindle Fire. Sadly, it could not handle the newline(s) I put in after the 0x1949

1.$ apt-get remove android-tools-adb
2.$ cd $PATH_TO_SDK/platform-tools/
3.$ ./adb devices
You will see like this:
daemon not running. starting it now on port 5037 * cannot bind 'tcp:5037' ADB server didn't ACK * failed to start daemon *
That show what errors.
Now you reset you PC, it will well.
Or
# lsof -i:5037
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
wineserve 3609 root 268u IPv4 20118 0t0 TCP localhost:5037 (LISTEN)
#
You will know which software use the port.

To avoid this simply change the following values in your host_config.xml:
<!-- Number of tests executed between reboots. A value <= 0 disables reboots. -->
<IntValue name="maxTestCount" value="10000" />
<!-- Max size [tests] for a package to be run in batch mode. -->
<IntValue name="maxTestsInBatchMode" value="100000" />
<!-- Max time [ms] between test status updates. -->
<IntValue name="testStatusTimeoutMs" value="600000" />

I had the same problem. I had improperly edited my adb_usb.ini file (I had two carriage returns at the end of the file...yes this was hard to find.)
This file is located somewhere similar to /Users/{user-name}/.android/adb_usb.ini
(replace {user-name} with your own user name)
Make sure the file reads EXTACTLY (No spaces/carriage returns/line breaks before or after):
'# ANDROID 3RD PARTY USB VENDOR ID LIST -- DO NOT EDIT."
'# USE 'android update adb' TO GENERATE."
'# 1 USB VENDOR ID PER LINE."
(IMPORTANT!!! There are no ' (apostrophes) in the actual file, this was the only way for me to post this without it interpreting the # for BOLD).
Hope that helps someone

If you're using Android Studio, if
you have the "Device chooser" dialog open
you try to run "adb devices" from your command line
it leads every single time to the following error
adb server is out of date. killing...
cannot bind 'tcp:5037'
ADB server didn't ACK
* failed to start daemon *
error:
SOLUTION (easy and quick)
Close the "Device chooser" dialog. My guess is that it tries to take over the adb connection in a.. very intensive way.

I'm facing this issue with Genymotion, so I've replaced it's adb with my current adb. For reference:
cd $GENYMOTION_HOME\tools
mv adb adb-old
ln -s $ANDROID_SDK\platform-tools\adb adb

There is yet another possibility. If you have installed any permission managers, like Advanced android permission manager , the adb may fail.It was my case. Uninstalled the app and then no issues.

It seem are the same,
but sometime, the command adb kill-server have no effect (at least is in my case).
So, i have tried other way.
You can check this way: https://stackoverflow.com/a/34627522/5597864

In a console, try:
taskkill /F /T /IM adb.exe
Do this many times, until it says ERROR: The process "adb.exe" not found.
Then
adb devices

The adb server is not running. you can open the command line window in Windows to check which process is using the 5037 port, remember the process number.
netstat -ano |findstr "5037"
Then use the Ctrl+alt+delete to open the process manager to kill the process which is possessing the 5037 port. You maybe need to try this several times until the 5037 port is free to use.

Open Command
Navigate your adb.exe file where is located
Reach into the file on command
adb kill-server
adb start-server

When it additionally says that adb server is out of date. killing... it kills it for you.
The problem is it restarts as soon as was killed.
So you should consider finding the adb.exe wherever it could be.
The simplest way to do that is opening a Task Manager, finding an adb.exe process -> RMB -> Open file location -> delete it from there. Unless it's not needed, in this case you should update it.
In my case it was in C:\Windows\ and came with their Visual Studio.

If you are getting the error cannot bind 'tcp:5037' and you are using any Linux distribution such as Ubuntu,
Kill old ADB process:
fuser -n tcp -k 5037
This will kill the adb process at port 5037 and then,
Start ADB:
adb start-server

Usually the answers given here worked for me, but today they didn't. My problem was fixed by updating the emulator and SDK to the latest versions from the SDK manager.

On A Mac or Unix
For those of you coming here with on Mac or Unix, the following worked for me:
adb kill-server
adb server