Killing the process adb.exe in the TASK MANAGER (to open task manager CTRL+Shift+Esc) solves it in my case. After killing it run adb start-server or adb devices and you should be fine.

我们可以很容易地解决这个问题。

We can solve this issue so easily.

1. 打开命令提示符， cd< platform-工具目录>


2. 运行命令 adb kill-server


3. 打开Windows任务管理器，检查 adb 是否仍在运行。如果是，只需删除 adb.exe


4. 运行命令 adb start-server 在命令提示符下

1. Open command prompt, cd <platform-tools directory>
2. Run command adb kill-server
3. Open Windows Task manager and check whether adb is still running. If it is, just kill adb.exe
4. Run command adb start-server in command prompt

命令提示符（cmd.exe）

Command Prompt (cmd.exe)

netstat -aon|findstr 5037

查找进程ID为0.0.0.0

find process id of 0.0.0.0

确保它是adb.exe

make sure it's adb.exe

tasklist|findstr 1980

杀死此过程

taskkill /f /t /im adb.exe

让ADB恢复正常

有关详细信息，请从这里