[Appium] Welcome to Appium v2.15.0
[Appium] Non-default server args:
[Appium] { address: '127.0.0.1',
basePath: '/wd/hub/',
port: 8608,
relaxedSecurityEnabled: true,
plugin: { 'device-farm': { iosDeviceType: 'real' } } }
[Appium] The autodetected Appium home path: /Users/mac
[Appium] Attempting to load driver xcuitest...
[Appium] Attempting to load driver uiautomator2...
[Appium] Requiring driver at /Users/mac/node_modules/appium-xcuitest-driver/build/index.js
[Appium] Requiring driver at /Users/mac/node_modules/appium-uiautomator2-driver/build/index.js
[Appium] XCUITestDriver has been successfully loaded in 0.821s
[Appium] AndroidUiautomator2Driver has been successfully loaded in 1.239s
[Appium] Appium REST http interface listener started on http://127.0.0.1:8608/wd/hub
[Appium] Available drivers:
[Appium] - xcuitest@8.3.1 (automationName 'XCUITest')
[Appium] - uiautomator2@4.0.1 (automationName 'UiAutomator2')
[Appium] Available plugins:
[Appium] - device-farm@9.5.0
[Appium] - appium-dashboard@v2.0.3
[Appium] No plugins activated. Use the --use-plugins flag with names of plugins to activate
[HTTP] --> GET /wd/hub/status {}
[AppiumDriver@fc2a] Calling AppiumDriver.getStatus() with args: []
[AppiumDriver@fc2a] Responding to client with driver.getStatus() result: {"ready":true,"message":"The server is ready to accept new connections","build":{"version":"2.15.0"}}
[HTTP] <-- GET /wd/hub/status 200 5 ms - 111
1
[HTTP] --> GET /device-farm/api/devices {}
[HTTP] No route found for /device-farm/api/devices
[HTTP] <-- GET /device-farm/api/devices 404 7 ms - 211

com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type [Lcom.appium.device.Device; from Object value (token JsonToken.START_OBJECT)
at [Source: (String)"{"status":9,"value":{"error":"unknown command","message":"The requested resource could not be found, or a request was received using an HTTP method that is not supported by the mapped resource","stacktrace":""}}"; line: 1, column: 1]。这是怎么回事呢