ADB server didn't act

Before Running eclipse to execute the Android Application, there was a problem today and the Console reported an error:

 

The connection to ADB is down, and a severe error has occured.
You must restart ADB and eclipse.
Please ensure that ADB is correctly located at 'e:/setups/Android/android-2.1_r01-windows/tools/adb.exe 'and can be executed.

 

Run ADB start-server on the command line

Errors:

* Daemon not running. Starting it now *
ADB server didn't ACK
* Failed to start daemon *

 

 

After confirming that the path of adb.exe is correct, the simulator and eclipse cannot be restarted twice. I checked the information online ~

 

Solution:

(1 Task Manager, close all adb.exe

(2) Restart eclipse.

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An error is reported when the Android Application console is executed in Eclipse:
The connection to ADB is down, and a severe error has occured.
You must restart ADB and eclipse.
Please ensure that ADB is correctly located at 'd: \ Android-2.2-Windows \ tools \ adb.exe 'and can be executed.

Run ADB start-server on the command line. The following error is returned:
Errors:
* Daemon not running. Starting it now *
ADB server didn't ACK
* Failed to start daemon *
It has been confirmed that the path of adb.exe is correct. It is not possible to restart the simulator and eclipse several times.
Solution:
(1 Task Manager, close all adb.exe
(2) Restart eclipse.

If this still doesn't work, find the process related to the bean clip in the task manager and kill it.