Eclipse error ADB server didn t ACK failed to start daemon

Question

After updating the SDK  Eclipse shows this error      ADB server didn t ACK  failed to start daemon    When I run an Android application  it gives me the following      Please ensure that adb is correctly located at  D  android-sdk-windows platform-tools adb exe  and can be executed    How can I fix this problem

User · Accepted Answer

I have solved my first question  Open Eclipse  open the SDK Manager  and choose the device to open   Or you can open the SDK directory  Open the SDK Manager  and then choose the device to open  2  Close Eclipse  and then open it

User · Answer

In addition to  Bastet s solution   Actually we have to kill the process using the address 0 0 0 0 0  That s why for most of the people killing adb exe from Task Manager was working  in my case I was not able to see it even in Task Manager    Following the  Bastet steps  I found out that some other process was using this address  I went ahead to kill it  and it gave me ACCESS DENIED as Error   So using the tasklist   findstr      I found out the name of the process and killed it from Task Manager   Thereafter it started working   In my case bas daemon and bas helper were using this address both of which corresponds to MOBOROBO

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I had to allow adb exe to access my network in my firewall

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I caused this problem by entering an extra blank line at the end of    android adb usb ini   Removing the extra blank line fixed the problem

User · Answer

Thanks   jowett  I have solved my same problem  doing these steps  Step 1  CTRL Shift Esc to open the task manager  which has adb exe process and end  kill  that process  Step 2  Now  close the eclipse  which is currently running on my computer   Step 3  Again  restart eclipse then solved that problem     For those using OS X  killall adb   For those using Windows  adb kill-server   should do the trick

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Killing Eclipse and then rebooting did not help me  I added the Android tool to the PATH variables  started Task Manager and killed adb exe   I restarted Eclipse  and then it worked

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Type   adb nodaemon server in a terminal   If it returns Invalid content in adb usb ini  then there is a problem with your adb usb ini file in the  android folder   Open adb usb ini and erase its contents  Then restart the server   it worked for me

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I ve already up-voted another answer here to this question  but just in case anyone was wondering  you don t need to restart Eclipse to get ADB running again   Just open a shell and run the command   adb start-server   If you haven t set the path to ADB in your system properties then you must first go to the directory in which ADB exists in Android android-sdk platform-tools    I m running Windows  I don t know how the mac people do things

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I had the same problem  But there was no process of adb on my laptop  I just log out and log in to my account  and it s resolved     ADB could start from CMD windows after that

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If you are using a sync application for the device  it could also be because there are other apps using the same 5037 port  Shut down all services running on port 5037 and try starting ADB   To check if any application is using port 5037  use this   netstat -a -n -o  findstr  5037    Get the PID of the application   Use Process Explorer to find the Process and exit it   Now use adb start-server or adb get-state to start check the ADB server status   I faced the issue when I used the Snappea   Wandoujia Sync application

User · Answer

We can solve this issue so easily    Open a command prompt  and do cd  lt platform-tools directory gt  Run command adb kill-server Open Windows Task manager and check whether adb is still running  If it is  just kill adb exe Run command adb start-server in the command prompt

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These symptoms occur if you are using the Genymotion emulator  on Windows or Linux  at the same time as Android Studio   adb server is out of date   killing    ADB server didn t ACK   failed to start daemon     Genymotion includes its own copy of adb  which interferes with the one bundled in the Android SDK   The easiest way to fix seems to be to update your Genymotion Settings so it uses the same ADB as your Android SDK     Just check the  Use custom Android SDK tools  option and enter your desired location

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This didn t start happening for me until I rooted my Samsung Galaxy nbsp S nbsp III phone  following the xda-developer forum guide    It happens pretty randomly  but it s definitely occurring while running Eclipse   Killing the adb exe process and restarting it solves the problem

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Check for the path of the Android directory  It should not contain spaces  etc   Also check if the plugin has been properly configured in Eclipse   Preferences   In my case I had everything checked multiple times  but it was still not working  I was about to reinstall everything  but I came upon an answer on this site  some other post    Do check your antivirus  It may be blocking the ports of adb exe or emulator programs  etc  That solved the problem in my case

User · Answer

Look at the antivirus or firewall    Does any of that block you from access    In k7 antivirus I turned off system monitor  and it does works for me

User · Answer

The best and the most efficient way without restarting any device or software is   Run the following   adt-bundle-windows-x86 64 sdk platform-tools adb exe   And one more thing   ADB is a self-dependent thing  You cannot do anything until unless it wants itself to work  There is one more way which I found out  Leave the device connected for 5-6 minutes and wait  Soon the device gets connected and tries to launch

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I met same problem  though I didn t what caused this  Whatever  i find some clues and fixed finally   When I open SDK and AVD manager  but find the AVD version 2 3 3  is not same with android lib version 2 3   So I create a new AVD with 2 3   I fixed it by the following steps  1  Open windows task manager and kill adb exe process   2  Close eclipse and restart it  Then it works   Hope it helps

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Command prompt  cmd exe    netstat -aon   findstr 5037   Find the process id of 0 0 0 0     Make sure it s adb exe   tasklist   findstr 1980     Kill this process   taskkill  f  t  im adb exe     Get ADB back to normal     Credit  blog post  Android ADB server didn t ACK failed to start daemon

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Run over to sysinternals com and pick up TCPVIEW and PROCESS EXPLORER  if you don t have them installed already   For some reason  the ADB daemon is terminating before the close socket exchange is complete   If you run  from the command prompt   NETSTAT -o   you will see the socket  generally 5037  in CLOSE WAIT state and the owning process number   Process Explorer won t show that process ID  the daemon terminated   and the process called adb exe  which opened the socket  will be gone    If adb exe if found  try killing the task and see if things get cleaned up    Using TCPVIEW  locate the hung socket   The process name column will show the associated process can not be found   Right click  and select  Close Connection    The socket is now closed  and the adb daemon should be able to start

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Make sure USB debugging on your phone is turned on  ADB kill-server and ADB start-server is not the problem   C  Documents and Settings Administrator gt  adb nodaemon server   - cannot bind  tcp 5037   C  Documents and Settings Administrator gt  netstat -aon   findstr  5037    - TCP 127 0 0 1 1130 127 0 0 1 5037 TIME WAIT 0  - TCP 127 0 0 1 1269 127 0 0 1 5037 TIME WAIT 0  - TCP 127 0 0 1 5037 0 0 0 0 0 LISTENING 3088  - TCP 127 0 0 1 5037 127 0 0 1 1128 TIME WAIT 0  - TCP 127 0 0 1 5037 127 0 0 1 1129 TIME WAIT 0  - TCP 127 0 0 1 5037 127 0 0 1 1270 TIME WAIT 0  C  Documents and Settings Administrator gt tasklist -fi  pid eq 3088    - Image name PID session name session   memory usage                                                                             - adb exe 3088 Console 0 3 816 K  C  Documents and Settings Administrator gt taskkill  f  pid 3088   - Success  terminate the PID for the process of 3 088   C  Documents and Settings Administrator gt adb start-server   - daemon not running  starting it now on port 5037    - daemon started successfully

User · Answer

ADB will often fail if there is a newline in adb usb ini  Remove it  restart it  and that will often solve the problem  at least for me anyway

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I had a similar issue  Killing an existing instance of the ADB process from Task Manager did not work for me   Just few days back  I had tried to install MIPS SDK and ADT-17 earlier and Eclipse gave me the error  and I did not fix that issue   So  now  when I got this ADB server didn t ACK  failed to start daemon    issue  I executed  Check for Updates  in the Eclipse Help menu item  There were no updates available  but at least  ADB server did not ACK  error disappeared   I hope this might help in a few cases

[android] Eclipse error "ADB server didn't ACK, failed to start daemon"

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