UDIS error in WDIOand appium

hi
@Ramandeep_Singh

Im also using WDIO and appium, when i run my script in real device ipad 6th generation im getting udid eror, could you plz help

“desiredCapabilities”:{“javascriptEnabled”:true,“locationContextEnabled”:true,“handlesAlerts”:true,“rotatable”:true,“automationName”:“XCUITest”,“deviceName”:“Vignesh’s iPad”,“platformName”:“iOS”,“platformVersion”:“12.1.4”,“orientation”:“PORTRAIT”,“deviceType”:“tablet”,"_":“13 more keys: [“app”,“noReset”,“newCommandTimeout”,“unicodeKeyboard”,“udid”,“agentPath”,“resetKeyboard”,“xcodeOrgId”,“bootstrapPath”,“xcodeSigningId”,“autoWebView”,“startIWDP”,“requestOrigins”]”}}
ERROR: An unknown server-side error occurred while processing the command. Original error: Unknown device or simulator UDID: ‘c51aa54329c6c61513e9496b9911f587af4f25ac’
vignesh’sipad.ios.12_1_4.ncxcashregister_app
at new RuntimeError (/Users/vigneshb-c/Desktop/NCXLatest/Ordering-Automation/node_modules/webdriverio/build/lib/utils/ErrorHandler.js:143:12)
at Request._callback (/Users/vigneshb-c/Desktop/NCXLatest/Ordering-Automation/node_modules/webdriverio/build/lib/utils/RequestHandler.js:318:39)
at Request.self.callback (/Users/vigneshb-c/Desktop/NCXLatest/Ordering-Automation/node_modules/request/request.js:185:22)
at Request.emit (events.js:198:13)
at Request.EventEmitter.emit (domain.js:448:20)
at Request. (/Users/vigneshb-c/Desktop/NCXLatest/Ordering-Automation/node_modules/request/request.js:1161:10)
at Request.emit (events.js:198:13)
at Request.EventEmitter.emit (domain.js:448:20)
at IncomingMessage. (/Users/vigneshb-c/Desktop/NCXLatest/Ordering-Automation/node_modules/request/request.js:1083:12)
at Object.onceWrapper (events.js:286:20)

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] app.ios: wdio ./config/wdio.ios.app.conf.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] app.ios script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.