Adb server not responding [duplicate]

Question

This question already has an answer here:

• Eclipse error “ADB server didn't ACK, failed to start daemon” 22 answers

I am a Android newbie. I guess I might be doing something stupid here. I have started the Virtual Device and I see that adbd daemon is running from the Terminal Emulator. When I run adb devices I get the following error:

C:\Program Files\Android\android-sdk\tools>adb devices
* daemon not running. starting it now on port 5037 * 
ADB server didn't ACK
* failed to start daemon * 
error: cannot connect to daemon

No other process is using port 5037. What am I doing wrong? Here are the packages I have installed -

1) Android SDK Tools, revision 10
2) Android SDK Platform-Tools, revision 3
3) SDK Platform Android 2.3.3, API 10, revision 1

Answer 1

Seems like the security program is blocking adb.exe, so go to the adb file path and open adb's properties, then check the Run this program as administrator setting.

Answer 2

As I have tried as follow by combining omni.present's method , and finally emulator works fine. firstly I stop adb.exe process in the task manager then I stop and start eclipse

Answer 3

I turned off the Windows Firewall and its working like magic. I am connected to the Internet through WiFi. If you are not behind a proxy and are still unable to access the Internet through a wireless link via the emulator, go to Device Manager and disable your LAN card.

Answer 4

This will occur normally,if abd is not able to launch properly and didn't exit when adb kill-server is executed.

So if in Windows 1. Go to Task Manager (CTRL+ALT+DEL) 2.look for adb.exe and end the process. Now restart the emulator ,should work properly.

additionally you can close and launch the development environment also (eg: Eclipse or NetBeans).

Answer 5

Had the same problem, it seems that my security solution was blocking adb.exe

Answer 6

I found there was a process call "Tadb.exe" in Windows Task Manager. I guess Tadb.exe is a similiar adb application of Tencent. Because I got an alert of "android device detected by QQ" after I install the last version of Tencent QQ2013 Beta5 (6970) yesterday.

After I killed the Tadb.exe, the original adb.exe of Android SDK works again.

You can see the detailed proecss to solve this problem here: adb cannot run, adb server is out of date