通过使用 cnpm install -g appium@1.7.1安装 appium，安装成功了，并且WebDriverAgent.xcodeproj文件也配置好了

最后一步就是测试是否能够正确创建爱你 WDA，使用xcodebuild -project WebDriverAgent.xcodeproj -scheme WebDriverAgentRunner -destination 'id=真机的udid' test测试

并没有报TEST FAILED，而是报了下面的一串[AXValidations] UIAccessibility Error adding

请大佬帮忙解读解读

2018-02-24 10:15:57.877 xcodebuild[1926:35591]  IDETestOperationsObserverDebug: Writing diagnostic log for test session to:
/var/folders/7c/bgvs_0fd41jf7z725zvd_87h0000gp/T/com.apple.dt.XCTest/IDETestRunSession-7E150187-E752-4F40-A07B-60D73D244A68/WebDriverAgentRunner-8D9E0731-C6C5-4F2F-8FEF-D17AFA1D61F2/Session-WebDriverAgentRunner-2018-02-24_101557-68s8yB.log
2018-02-24 10:15:57.880 xcodebuild[1926:35589] [MT] IDETestOperationsObserverDebug: (0F10E01E-0DF3-497D-A8F8-71E9D371F0CB) Beginning test session WebDriverAgentRunner-0F10E01E-0DF3-497D-A8F8-71E9D371F0CB at 2018-02-24 10:15:57.880 with Xcode 9C40b on target <DVTiOSDevice: 0x7fb944a42970> {
        deviceSerialNumber:         DMQRDMLRG5VV
        identifier:                 真机的udid
        deviceClass:                iPad
        deviceName:                 vcy's
        deviceIdentifier:           真机的udid
        productVersion:             11.2.1
        buildVersion:               15C153
        deviceSoftwareVersion:      11.2.1 (15C153)
        deviceArchitecture:         arm64
        deviceTotalCapacity:        12717416448
        deviceAvailableCapacity:    4612104192
        deviceIsTransient:          NO
        ignored:                    NO
        deviceIsBusy:               NO
        deviceIsActivated:          YES
        deviceActivationState:      Activated
        isPasscodeLocked:           NO
        deviceType:                 <DVTDeviceType:0x7fb944839e50 Xcode.DeviceType.iPhone>
        supportedDeviceFamilies:    (
    1,
    2
)
        applications:              (null)
        provisioningProfiles:      (null)
        hasInternalSupport:        NO
        isSupportedOS:             YES
        developerDiskMountError:   (null)
(null)
    bootArgs:                  <unavailable>
        connected:                 yes
        isWirelessEnabled:         no
        connectionType:            direct
        } (11.2.1 (15C153))
=== BUILD TARGET WebDriverAgentLib OF PROJECT WebDriverAgent WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET WebDriverAgentRunner OF PROJECT WebDriverAgent WITH CONFIGURATION Debug ===

Check dependencies

writeDictToFile:1278 ==== Successfully wrote Manifest cache to /var/folders/7c/bgvs_0fd41jf7z725zvd_87h0000gp/C/com.apple.DeveloperTools/All/Xcode/EmbeddedAppDeltas/b7ccc0c2a2ff096ac27da8378e464d60/2600ede04135ffc36df6c6e57cf2b4ad34c52f96/ManifestCache.plist
2018-02-24 10:16:04.185088+0800 WebDriverAgentRunner-Runner[678:346578] Running tests...
2018-02-24 10:16:05.132489+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[PHAsset accessibilityLabel]
2018-02-24 10:16:05.132596+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[PHAsset accessibilityValue]
2018-02-24 10:16:05.132673+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[PHAsset accessibilityTraits]
2018-02-24 10:16:05.132792+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[PHAsset _accessibilitySavePhotoLabel:]
2018-02-24 10:16:05.132942+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding +[PHAsset safeCategoryBaseClass]
2018-02-24 10:16:05.133753+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[CAMLightingControl accessibilityLabel]
2018-02-24 10:16:05.133849+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[CAMLightingControl accessibilityValue]
2018-02-24 10:16:05.133929+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[CAMLightingControl accessibilityTraits]
2018-02-24 10:16:05.133999+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[CAMLightingControl isAccessibilityElement]
2018-02-24 10:16:05.134115+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[CAMLightingControl accessibilityIncrement]
2018-02-24 10:16:05.134207+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[CAMLightingControl accessibilityDecrement]
2018-02-24 10:16:05.134281+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding +[CAMLightingControl safeCategoryBaseClass]
2018-02-24 10:16:05.134506+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[PLManagedAsset accessibilityLabel]
2018-02-24 10:16:05.134576+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[PLManagedAsset accessibilityValue]
2018-02-24 10:16:05.134640+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[PLManagedAsset accessibilityTraits]
2018-02-24 10:16:05.134706+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding -[PLManagedAsset _accessibilityPhotoDescription]
2018-02-24 10:16:05.134771+0800 WebDriverAgentRunner-Runner[678:346578] [AXValidations] UIAccessibility Error adding +[PLManagedAsset safeCategoryBaseClass]
2018-02-24 10:16:05.167430+0800 WebDriverAgentRunner-Runner[678:346578] Continuing to run tests in the background with task ID 1
Test Suite 'All tests' started at 2018-02-24 10:16:05.898
Test Suite 'WebDriverAgentRunner.xctest' started at 2018-02-24 10:16:05.901
Test Suite 'UITestingUITests' started at 2018-02-24 10:16:05.902
Test Case '-[UITestingUITests testRunner]' started.
    t =     0.00s Start Test at 2018-02-24 10:16:05.908
    t =     0.01s Set Up
2018-02-24 10:16:05.934902+0800 WebDriverAgentRunner-Runner[678:346578] Built at Feb 24 2018 10:14:05
2018-02-24 10:16:05.990397+0800 WebDriverAgentRunner-Runner[678:346578] ServerURLHere->http://192.168.31.134:0<-ServerURLHere