Appium having trouble detecting iOS Simulator device

Issues/Bugs
1

Hi all,

I am running Appium version 1.6.3, with iOS version 10.12.3. and with all of the other libraries installed with latest version. I’m trying to run a test on a iOS emulator, and every time I try to run a test, I would get the following log:

[Appium] Welcome to Appium v1.6.3 (REV 70b1c6de0b889aabc86b1990c59994e6acb8d726)
[Appium] Appium REST http interface listener started on 0.0.0.0:4723
[HTTP] --> POST /wd/hub/session {"requiredCapabilities":{},"desiredCapabilities":{"deviceName":"iPhone 6 Plus","udid":"48B1A428-3C05-42E9-AC43-5D202505D120","app":"/Users/jakerushing/dice-seeker/UIScriptsTests/Dice.app","platformVersion":"9.3","platformName":"iOS","automationName":"XCUITest","bundleId":"com.dice.Dice"}}
[debug] [MJSONWP] Calling AppiumDriver.createSession() with args: [{"deviceName":"iPhone 6 Plus","udid":"48B1A428-3C05-42E9-AC43-5D202505D120","app":"/Users/jakerushing/dice-seeker/UIScriptsTests/Dice.app","platformVersion":"9.3","platformName":"iOS","automationName":"XCUITest","bundleId":"com.dice.Dice"},{},null,null,null]
[Appium] Creating new XCUITestDriver session
[Appium] Capabilities:
[Appium]   deviceName: 'iPhone 6 Plus'
[Appium]   udid: '48B1A428-3C05-42E9-AC43-5D202505D120'
[Appium]   app: '/Users/jakerushing/dice-seeker/UIScriptsTests/Dice.app'
[Appium]   platformVersion: '9.3'
[Appium]   platformName: 'iOS'
[Appium]   automationName: 'XCUITest'
[Appium]   bundleId: 'com.dice.Dice'
[debug] [XCUITest] XCUITestDriver version: 2.4.2
[BaseDriver] Session created with session id: a9724028-67b3-4036-bcc5-e9b1e12823eb
[debug] [XCUITest] Xcode version set to '8.2.1'
[debug] [XCUITest] iOS SDK Version set to '10.2'
[debug] [XCUITest] Available devices: 
[XCUITest] Error: Unknown device or simulator UDID: '48B1A428-3C05-42E9-AC43-5D202505D120'
    at XCUITestDriver.determineDevice$ (../../lib/driver.js:437:17)
    at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
 Error: Unknown device or simulator UDID: '48B1A428-3C05-42E9-AC43-5D202505D120'
    at XCUITestDriver.determineDevice$ (../../lib/driver.js:437:17)
    at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
[debug] [XCUITest] Running iOS simulator reset flow
[MJSONWP] Encountered internal error running command: Error: Unknown device or simulator UDID: '48B1A428-3C05-42E9-AC43-5D202505D120'
    at XCUITestDriver.determineDevice$ (../../lib/driver.js:437:17)
    at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
[HTTP] <-- POST /wd/hub/session 500 1720 ms - 209

I tried to have the emulator running in prior to running the test and I keep getting the same error. Could anyone on here point out what I’m doing wrong? Any input is greatly appreciated.

2

Take the udid out of your capabilities. It’s not needed for Simulator, you just need the name.

1 Like
3

This worked! Thanks a lot!