The problem that eclipse cannot connect to the simulator: ADB server didn 'Tack

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 'd: \ Android-2.2-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 *

It has been confirmed that the path of adb.exe is correct. After restarting the simulator and eclipse several times, it still does not work. I checked the information online ~

Solution:

(1 Task Manager, close all adb.exe

(2) Restart eclipse.

Some people also say that the reason for the pods is to shut down the pods.