C:\Users\16613\Desktop\adb>adb install meituanyouxuan.apk adb server version (31) doesn't match this client (40); killing... * daemon started successfully error: more than one device/emulator adb: error: failed to get feature set: more than one device/emulator - waiting for device - error: more than one device/emulator C:\Users\16613\Desktop\adb>adb devices List of devices attached HT68J0205389 device emulator-5554 device C:\Users\16613\Desktop\adb>adb -s HT68J0205389 install meituanyouxuan.apk Success C:\Users\16613\Desktop\adb>