Appium failed to respond after opening the native iOS app

Hi Team,
We have been trying to run Appium scripts to run native iOS app but the appium does not respond and does not start the test cases. Below is the error logs we get through enabling XcodeLogs through Capabilities.

[Xcode] [Xcode] 2018-10-30 19:50:16.262904+0530 WebDriverAgentRunner-

Runner[1899:251246] Enqueue Failure: Failure fetching attributes for (null): Error Code=1000 “Timeout waiting for fulfillment of promise for ‘Fetching attributes for (null)’.” UserInfo=

{NSLocalizedDescription=Timeout waiting for fulfillment of promise for ‘Fetching attributes for (null)’.}

/usr/local/lib/node_modules/appium/node_modules/appium-xcuitest-driver/WebDriverAgent/WebDriverAgentRunner/UITestingUITests.m 37 1 [Xcode]

[Xcode] 2018-10-30 19:50:16.265961+0530 WebDriverAgentRunner-Runner[1899:251246] Enqueue Failure: Failure getting list of active applications: (null)

/usr/local/lib/node_modules/appium/node_modules/appium-xcuitest-driver/WebDriverAgent/WebDriverAgentRunner/UITestingUITests.m 37 1

[Xcode] [Xcode] t = 322.45s Unable to monitor event loop [Xcode] [Xcode] t = 322.47s Unable to monitor animations [Xcode] [Xcode] t = 322.48s Open com.release.demoapp [Xcode] [Xcode] t = 322.48s Launch com.release.demoapp [Xcode] [Xcode] t = 322.48s Terminate com.release.demoapp:1904 [Xcode] [Xcode] t = 323.72s Wait for com.release.demoapp to idle [Xcode]


[XCUITest] Failed to create WDA session (An unknown server-side error occurred while processing the command. Original error: Could not proxy command to remote server. Original error: Error: ESOCKETTIMEDOUT). Retrying…

[debug] [BaseDriver] Event ‘wdaSessionAttempted’ logged at 1540909218924 (19:50:18 GMT+0530 (India Standard Time))

[debug] [XCUITest] Sending createSession command to WDA [debug] [JSONWP Proxy] Matched ‘/session’ to command name ‘createSession’ [debug] [JSONWP Proxy] Proxying [POST /session] to [POST

http://localhost:52148/session] with body: {“desiredCapabilities”:{“bundleId”:“com.release.demoapp”,“arguments”:[],“environment”:{},“shouldWaitForQuiescence”:true,“shouldUseTestManagerForVisibilityDetection”:true,“maxTypingFrequency”:10,“shouldUseSingletonTestManager”:false}}