Issue with Starting ios_webkit_debug_proxy

Issue with Starting ios_webkit_debug_proxy at port 27753

Getting below error

Xcode Version: 10.0
Appium : 1.9.1
ios-deploy: 2.0.0
ios_webkit_debug_proxy 1.8.1
Built with libimobiledevice v1.2.0, libplist v2.0.0
Safari Web Inspetor is ON
iOS version : 11.0

“desiredCapabilities”: {
“browserName”: “Safari”,
“platformName”: “iOS”,
“deviceName”: “iPhone 7”,
“automationName”: “XCUITest”,
“startIWDP”: true,
“udid”: “auto”,
“showXcodeLog” : true,
“xcodeSigningId”: “iPhone Developer”,
“xcodeOrgId”: “XXXXXXXXX”,
“updatedWDABundleId”: “XXXXXXXX”
}

“25C2985B-76DD-4D70-87DA-961727FA49CF”,“status”:0}
[debug] [BaseDriver] Event ‘wdaSessionStarted’ logged at 1539689860773 (12:37:40 GMT+0100 (British Summer Time))
[debug] [BaseDriver] Event ‘wdaStarted’ logged at 1539689860773 (12:37:40 GMT+0100 (British Summer Time))
[XCUITest] Skipping setting of the initial display orientation. Set the “orientation” capability to either “LANDSCAPE” or “PORTRAIT”, if this is an undesired behavior.
[debug] [BaseDriver] Event ‘orientationSet’ logged at 1539689860773 (12:37:40 GMT+0100 (British Summer Time))
[debug] [BaseDriver] Event ‘iwdpStarting’ logged at 1539689860774 (12:37:40 GMT+0100 (British Summer Time))
[debug] [iOS] Starting ios_webkit_debug_proxy at port 27753 on device b2b195de65ec72f89d62a01f28aa770482708bb6
[IWDP] Could not connect to lockdownd, error code -21. Exiting.
[IWDP] Unable to attach b2b195de65ec72f89d62a01f28aa770482708bb6 inspector
[debug] [iOS] Starting ios_webkit_debug_proxy at port 27753 on device b2b195de65ec72f89d62a01f28aa770482708bb6
[iOS] Error: Timed out waiting for ios_webkit_debug_proxy to open
[iOS] at Object.wrappedLogger.errorAndThrow (/usr/local/lib/node_modules/appium/node_modules/appium-support/lib/logging.js:78:13)
[iOS] at IWDP.start$ (/usr/local/lib/node_modules/appium/node_modules/appium-ios-driver/lib/iwdp.js:61:14)
[iOS] at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
[iOS] at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
[iOS] at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
[iOS] at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
[XCUITest] Error: Could not start ios_webkit_debug_proxy server: Timed out waiting for ios_webkit_debug_proxy to open
[XCUITest] at Object.wrappedLogger.errorAndThrow (/usr/local/lib/node_modules/appium/node_modules/appium-support/lib/logging.js:78:13)
[XCUITest] at XCUITestDriver.start$ (/usr/local/lib/node_modules/appium/node_modules/appium-xcuitest-driver/lib/driver.js:397:13)
[XCUITest] at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
[XCUITest] at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
[XCUITest] at GeneratorFunctionPrototype.prototype.(anonymous function) [as throw] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
[XCUITest] at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
[XCUITest] Error: Could not start ios_webkit_debug_proxy server: Timed out waiting for ios_webkit_debug_proxy to open
[XCUITest] at Object.wrappedLogger.errorAndThrow (/usr/local/lib/node_modules/appium/node_modules/appium-support/lib/logging.js:78:13)
[XCUITest] at XCUITestDriver.start$ (/usr/local/lib/node_modules/appium/node_modules/appium-xcuitest-driver/lib/driver.js:397:13)
[XCUITest] at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
[XCUITest] at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
[XCUITest] at GeneratorFunctionPrototype.prototype.(anonymous function) [as throw] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
[XCUITest] at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
[debug] [JSONWP Proxy] Matched ‘/session/b621d676-9e78-4113-a005-374a6db4e066’ to command name ‘deleteSession’
[debug] [JSONWP Proxy] Proxying [DELETE /session/b621d676-9e78-4113-a005-374a6db4e066] to [DELETE http://localhost:8100/session/25C2985B-76DD-4D70-87DA-961727FA49CF] with no body
[Xcode] t = 13.08s Terminate com.apple.mobilesafari:797
[Xcode]
[IWDP] Could not connect to lockdownd, error code -21. Exiting.
[IWDP] Unable to attach b2b195de65ec72f89d62a01f28aa770482708bb6 inspector
[debug] [JSONWP Proxy] Got response with status 200: “{\n “value” : {\n\n },\n “sessionId” : “B2DA06FC-1778-47B8-B3DE-7A57EF62BA23”,\n “status” : 0\n}”
[debug] [XCUITest] Not clearing log files. Use clearSystemFiles capability to turn on.
[debug] [iOSLog] Stopping iOS log capture
[debug] [BaseDriver] Event ‘newSessionStarted’ logged at 1539689871455 (12:37:51 GMT+0100 (British Summer Time))
[debug] [MJSONWP] Encountered internal error running command: Error: Could not start ios_webkit_debug_proxy server: Timed out waiting for ios_webkit_debug_proxy to open
[debug] [MJSONWP] at Object.wrappedLogger.errorAndThrow (/usr/local/lib/node_modules/appium/node_modules/appium-support/lib/logging.js:78:13)
[debug] [MJSONWP] at XCUITestDriver.start$ (/usr/local/lib/node_modules/appium/node_modules/appium-xcuitest-driver/lib/driver.js:397:13)
[debug] [MJSONWP] at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
[debug] [MJSONWP] at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
[debug] [MJSONWP] at GeneratorFunctionPrototype.prototype.(anonymous function) [as throw] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
[debug] [MJSONWP] at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
[HTTP] <-- POST /wd/hub/session 500 31335 ms - 236
[HTTP]

This is your error.

This looks like a good solution (googled it):

Here is the rest of my google search if that doesn’t work:

https://www.google.com/search?q=[IWDP]+Could+not+connect+to+lockdownd%2C+error+code+-21.+Exiting.&oq=[IWDP]+Could+not+connect+to+lockdownd%2C+error+code+-21.+Exiting.&aqs=chrome..69i57.986j0j7&sourceid=chrome&ie=UTF-8