The prompt in adb shell reads “adb server is out of date.” How to resolve this issue.

If you encounter the prompt “adb server is out of date” when using the adb shell command, it means that the adb server version is too old. The solution is as follows:

1. Firstly, make sure that your Android SDK Platform Tools and adb tools are up to date. You can download the latest Android SDK from the Android developer website.
2. If you are experiencing issues even after installing the latest version of the Android SDK, you can try the following steps:
3. Open the command prompt or terminal window and navigate to the platform-tools directory of the Android SDK. This directory is typically located within the platform-tools folder under the installation directory of the Android SDK.
4. Run the following commands to update the adb tool:
   adb kill-server
   adb start-server
5. After running the above command, you should see that the adb service has successfully started, and the prompt will no longer display “adb server is out of date”.
6. If the above method still doesn’t work, you can try restarting the computer and then running the adb shell command again.

If the above methods still do not solve the problem, it may be necessary to further check if the ADB settings and environment variables are correctly configured.