A solution to the The connection to adb is down problem appears in Android programming

This paper analyzes the solution of The connection to adb is down problem in Android programming. To share for your reference, the details are as follows:

1. An error:

BUILD FAILED
D:\workspace\ganji\build.xml:144: The following error occurred while executing this line:
D:\workspace\ganji\build.xml:271: Unable to delete file D:\workspace\ganji\tmp\proguard\tmp.jar

Solution:

1 emulator has been opened, cannot be recompiled, must be closed 1. Used for ant

2. An error:

The connection to adb is down, and a severe error has occured.

Solution:

cmd jump to the sdk tools file path
adb kill-server
And then adb start-ES39en

3. An error:

The connection to adb is down, and a severe error has occured.
[2010-03-11 09:36:56 - HelloOPone] You must restart adb and Eclipse.
[2010-03-11 09:36:56 - HelloOPone] Please ensure that adb is correctly located at 'D:\OPhoneSDK_1.5
\platform-tools\adb.exe' and can be executed.

Solution:

Method 1. adb ES57en-ES58en and then ES59en-ES60en
Method 2. If method 1 does not work, kill adb.exe in the task manager and restart Eclipse.
3. Methods 1 and 2 do not work, so check the last sentence in the error: ES66en-ES67en adb.exe (my error is that there is no folder platform-ES71en under the relevant path
, so I choose to create a new folder and copy all the files in tools to ES74en-ES75en)

4. If the previous method still does not work, it is recommended to re-install 1 system, it is better to change the system.

I hope this article has been helpful in Android programming.