The connection to ADB are down, and a severe error has occured.

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1,

The connection to ADB are down, and a severe error has occured.
[2015-01-14 10:18:07-WPT] You must restart ADB and Eclipse.
[2015-01-14 10:18:07-WPT] Please ensure this adb is correctly located at ' D:\android\sdk\platform-tools\adb.exe ' and can be executed.

Workaround:

1, go to the Platform-tools directory, shift+ right click here to open the command window

ADB kill-server

ADB start-server

This is still not going to work, keep looking for the port-hogging process.

Open Task Manager, find the PID 8768 process, end.

Then ADB Start-server can

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The connection to ADB are down, and a severe error has occured.