Appium 「求助」Appium 通过命令行起两个服务，连两个 android，但有一个终端会连接失败，请问应该怎么解决？
设备是 Mac Mini，小米/三星手机
当两个手机单独执行任务，都是正常的；
当两个手机同时执行任务就会出现问题。
命令行起的服务，查看进程号 40087， 39919
node /Applications/Appium.app/Contents/Resources/app/node_modules/appium/build/lib/main.js -a 0.0.0.0 -p 4623 --bootstrap-port 4624
[ start_appium ]: start appium ok ,appium_id = 40087
node /Applications/Appium.app/Contents/Resources/app/node_modules/appium/build/lib/main.js -a 0.0.0.0 -p 4633 --bootstrap-port 4634
[ start_appium ]: start appium ok ,appium_id = 39919
窗口查看起的服务是正常的：
sh-3.2# ps aux | grep node
root 40087 0.8 1.1 409505040 94304 s005 S+ 10:46 上午 0:03.45 node /Applications/Appium.app/Contents/Resources/app/node_modules/appium/build/lib/main.js -a 0.0.0.0 -p 4623 --bootstrap-port 4624
root 39919 0.0 0.0 0 0 s000 Z+ 10:39 上午 0:00.00 (node)
两个终端出现的报错信息：
终端 1 的报错，连接操作是正常：
error: more than one device/emulator
终端 2 的报错，连接失败：
HTTPConnectionPool(host='127.0.0.1', port=4633): Max retries exceeded with url: /wd/hub/session/c3d6d10e-9873-4f13-aa97-5731a2073c58/timeouts (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 61] Connection refused'))
error: more than one device/emulator
这个报错一般出现在连接了多于一台 android 设备上，运行 adb 命令时未明确设定设备的 udid 时。你看下你自动化脚本是不是没有指定 udid 给 appium ？
@ 陈恒捷 @Eason 这个是出现问题的时候信息，就是在操作过程中，会突然出错
Try :find element and then click accessibility_id : MI170
SUCCESS :find element and then click accessibility_id : MI170
Try :find element and then click id : com.immomo.momo:id/message_btn_selectpic
[ ERROR ] find element and then click failed! id : com.immomo.momo:id/message_btn_selectpic
HTTPConnectionPool(host='127.0.0.1', port=4633): Max retries exceeded with url: /wd/hub/session/5680072f-55b5-43b6-971b-f3698a212d0f/timeouts (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 61] Connection refused'))
@ 陈恒捷 @Eason
试着在起 appium 的时候加了 --uuid
终端 1
node /Applications/Appium.app/Contents/Resources/app/node_modules/appium/build/lib/main.js -a 0.0.0.0 -p 4623 --bootstrap-port 4624 -U 127.0.0.1:62001 --udid RFCN30WZCZB
[ start_appium ]: start appium ok ,appium_id = 45145
! ! ! appium_id : 45145
error: more than one device/emulator
[ check_app_installed ]: check start
[ check_app_installed ]: appPackage = com.sankuai.meituan appactivity= com.meituan.android.pt.homepage.activity.MainActivity
[ connect_android_app ]: start remote appiumurl = http://localhost:4623/wd/hub
[ connect_android_app ]: connect success
[ check_app_installed ]: check end!
adb: more than one device/emulator
终端 2 Failed
node /Applications/Appium.app/Contents/Resources/app/node_modules/appium/build/lib/main.js -a 0.0.0.0 -p 4633 --bootstrap-port 4634 --uuid e6386478
[ start_appium ]: start appium ok ,appium_id = 44976
[ check_app_installed ]: check start
[ check_app_installed ]: appPackage = com.tencent.mm appactivity= com.tencent.mm.ui.LauncherUI
[ connect_android_app ]: start remote appiumurl = http://localhost:4633/wd/hub
[ connect_android_app ] connect exception
HTTPConnectionPool(host='localhost', port=4633): Max retries exceeded with url: /wd/hub/session (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 61] Connection refused'))
