android The connection to adb is down, and a severe error has occured

2012-01-13 23:09:41 - HelloAndroid]The connection to adb is down, and a severe error has occured.
2012-01-13 23:09:41 - HelloAndroid]You must restart adb and Eclipse.
2012-01-13 23:09:41 - HelloAndroid]Please ensure that adb is correctly located at 'C:\Users

解决办法：
wo options to solve this problem on windows:
Option 1:

Close the eclipse, if it is running.
Run the command prompt.
Go to the tools location of the android sdk.
run 'adb kill-server'
then run 'adb start-server'.
start the eclipse.

Option 2:

Open the task manager.
kill the adb process.
start the eclipse.

Problem should be solved.

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1：Try below steps:

Close the Eclipse if running
Go to the Android SDK tools directory in Command Prompt
type

adb kill-server

then type

adb start-server

No error message is thrown while starting ADB server, then adb is started successfully.
Now you can start Eclipse again.

it worked for me this way, Eclipse should be closed before issuing these commands.

2：Open up the Windows task manager, and kill the process named adb.exe, re-launch the program.

3：

goto 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...

0 down vote

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

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.