If the following error occurs:
The connection to adb is down, and a severe error has occured.
You must restart adb and Eclipse.
Please Ensure That Correctly adb is located at 'D: Androidandroid-sdk-windowsplatform-toolsadb.exe' and can be Executed.
Eclipse looks like:
solution 1
As you put there to restart the adb. So we must go to the view "Devices". If not we will have open in the navigation bar to "Windows" in the dropdown menu press press "Show View" and the submenu "Other ...".
In the window that opens, open the "Android" folder. Then select "Devices" and ended with "OK".
In Eclipse we had been open view "Devices". To the right there is an arrow to display, where press "Reset adb".
It takes a few seconds to work. When finished we may appear at the hearing on "Console" something like the following image. Everything will be done well.
solution 2
This solution does the same as above, so if you have not worked the previous one, this other solution ensures that you will work.
We will use the console command for this. We search in Windows: cmd
In this window we write the path to the "adb.exe". For example, if we have the Android SDK installed on drive C, searching for the "adb.exe" is found in C: Androidandroid-sdkplatform-tools. For what we put into the console to go this route: cd C: Androidandroid-sdkplatform-tools
Press the key "Enter" to put the following line: adb kill-server
Again button "Enter", and the following line: adb start-server
For the last time "Enter" and after a few seconds warns us that has been started successfully.