如果出现The connection to adb is down, and a severe error has occured.[2016-11-28 11:49:56 - Test] You must restart adb and Eclipse.[2016-11-28 11:49:56 - Test] Please ensure that adb is correctly located at 'C:\DevInstall\android-sdk\platform-tools\adb.exe' and can be executed.
It may be several: the environment is not configured, does not operate correctly, mutual interference between files, the port is occupied, is not compatible with the environment, the debug idea is:
1. First, ensure that the information environment of a group with no problem (that is, first of all ensure the installation and commissioning are in accordance with " Android development environment ( Windows 64bit steps and methods)" a text, to ensure that no pop-up error after runtime environment).
2. After ensuring correct run sequence (sometimes way is the software, reboot the system, or cmd or process kill off, turn it on again).
3. re-established after the link is correct throughout, delete the extra copy of the file as early as possible.
4. Finally, see the program's process, see if I can find, but can also use cmd in cd into the WINDOWS \ system32 \ under use netstat -an to see the process, or in the task manager also has to see which process is using the port, disable out just fine in the task Manager.
5 again later if not right, it may be incompatible between the systems or software.
6. These errors are non-written internal software error, and internal processes are correct, as " Android simple example (generates" the Hello World ! ")" As discussed, follow the steps to do just fine.
Finally, I appear here this problem because: open eclipse when it prompts me to ADT and SDK version is too low, and this version of the eclipse and JDK not compatible, requires upgrade SDK and ADT , then downloaded the latest over the wall SDK , the latest upgrade ADT enough. (See method to download and upgrade " Android development environment ( Windows 64bit )" article).