`react-native run-ios` returns Error: Could not find iPhone X simulator
whenever I run react-native run-ios, I get
Could not find iPhone X simulator
Error: Could not find iPhone X simulator
at resolve (calendarPractice/node_modules/react-native/local-cli/runIOS/runIOS.js:149:13)
at new Promise (<anonymous>)
at runOnSimulator (calendarPractice/node_modules/react-native/local-cli/runIOS/runIOS.js:134:10)
at Object.runIOS [as func] (calendarPractice/node_modules/react-native/local-cli/runIOS/runIOS.js:106:12)
at Promise.resolve.then (calendarPractice/node_modules/react-native/local-cli/cliEntry.js:117:22)
however, when I run on Xcode, it works fine
{
"devicetypes" : [
{
"name" : "iPhone 4s",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 4s.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-4s"
},
{
"name" : "iPhone 5",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 5.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-5"
},
{
"name" : "iPhone 5s",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 5s.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-5s"
},
{
"name" : "iPhone 6",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 6.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-6"
},
{
"name" : "iPhone 6 Plus",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 6 Plus.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-6-Plus"
},
{
"name" : "iPhone 6s",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 6s.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-6s"
},
{
"name" : "iPhone 6s Plus",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 6s Plus.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-6s-Plus"
},
{
"name" : "iPhone 7",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 7.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-7"
},
{
"name" : "iPhone 7 Plus",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 7 Plus.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-7-Plus"
},
{
"name" : "iPhone 8",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 8.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-8"
},
{
"name" : "iPhone 8 Plus",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone 8 Plus.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-8-Plus"
},
{
"name" : "iPhone SE",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone SE.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-SE"
},
{
"name" : "iPhone X",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone X.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-X"
},
{
"name" : "iPhone Xs",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone Xs.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-XS"
},
{
"name" : "iPhone Xs Max",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone Xs Max.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-XS-Max"
},
{
"name" : "iPhone Xʀ",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPhone Xʀ.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPhone-XR"
},
{
"name" : "iPad 2",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad 2.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-2"
},
{
"name" : "iPad Retina",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Retina.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Retina"
},
{
"name" : "iPad Air",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Air.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Air"
},
{
"name" : "iPad Air 2",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Air 2.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Air-2"
},
{
"name" : "iPad (5th generation)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad (5th generation).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad--5th-generation-"
},
{
"name" : "iPad Pro (9.7-inch)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Pro (9.7-inch).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Pro--9-7-inch-"
},
{
"name" : "iPad Pro (12.9-inch)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Pro (12.9-inch).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Pro"
},
{
"name" : "iPad Pro (12.9-inch) (2nd generation)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Pro (12.9-inch) (2nd generation).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Pro--12-9-inch---2nd-generation-"
},
{
"name" : "iPad Pro (10.5-inch)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Pro (10.5-inch).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Pro--10-5-inch-"
},
{
"name" : "iPad (6th generation)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad (6th generation).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad--6th-generation-"
},
{
"name" : "iPad Pro (11-inch)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Pro (11-inch).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Pro--11-inch-"
},
{
"name" : "iPad Pro (12.9-inch) (3rd generation)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/iPad Pro (12.9-inch) (3rd generation).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.iPad-Pro--12-9-inch---3rd-generation-"
},
{
"name" : "Apple TV",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/AppleTVOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple TV.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-TV-1080p"
},
{
"name" : "Apple TV 4K",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/AppleTVOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple TV 4K.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-TV-4K-4K"
},
{
"name" : "Apple TV 4K (at 1080p)",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/AppleTVOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple TV 4K (at 1080p).simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-TV-4K-1080p"
},
{
"name" : "Apple Watch - 38mm",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple Watch - 38mm.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-Watch-38mm"
},
{
"name" : "Apple Watch - 42mm",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple Watch - 42mm.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-Watch-42mm"
},
{
"name" : "Apple Watch Series 2 - 38mm",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple Watch Series 2 - 38mm.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-2-38mm"
},
{
"name" : "Apple Watch Series 2 - 42mm",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple Watch Series 2 - 42mm.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-2-42mm"
},
{
"name" : "Apple Watch Series 3 - 38mm",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple Watch Series 3 - 38mm.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-3-38mm"
},
{
"name" : "Apple Watch Series 3 - 42mm",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple Watch Series 3 - 42mm.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-3-42mm"
},
{
"name" : "Apple Watch Series 4 - 40mm",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple Watch Series 4 - 40mm.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-4-40mm"
},
{
"name" : "Apple Watch Series 4 - 44mm",
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/DeviceTypes\/Apple Watch Series 4 - 44mm.simdevicetype",
"identifier" : "com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-4-44mm"
}
],
"runtimes" : [
{
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/Runtimes\/iOS.simruntime",
"availabilityError" : "",
"buildversion" : "16B91",
"availability" : "(available)",
"isAvailable" : true,
"identifier" : "com.apple.CoreSimulator.SimRuntime.iOS-12-1",
"version" : "12.1",
"name" : "iOS 12.1"
},
{
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/AppleTVOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/Runtimes\/tvOS.simruntime",
"availabilityError" : "",
"buildversion" : "16J602",
"availability" : "(available)",
"isAvailable" : true,
"identifier" : "com.apple.CoreSimulator.SimRuntime.tvOS-12-1",
"version" : "12.1",
"name" : "tvOS 12.1"
},
{
"bundlePath" : "\/Applications\/Xcode.app\/Contents\/Developer\/Platforms\/WatchOS.platform\/Developer\/Library\/CoreSimulator\/Profiles\/Runtimes\/watchOS.simruntime",
"availabilityError" : "",
"buildversion" : "16R591",
"availability" : "(available)",
"isAvailable" : true,
"identifier" : "com.apple.CoreSimulator.SimRuntime.watchOS-5-1",
"version" : "5.1",
"name" : "watchOS 5.1"
}
],
"devices" : {
"com.apple.CoreSimulator.SimRuntime.watchOS-5-1" : [
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple Watch Series 2 - 38mm",
"udid" : "01AFDEF7-63B6-465C-A02A-44EE4A07EABA",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple Watch Series 2 - 42mm",
"udid" : "BE62C985-DEE2-46EC-8962-A582D537EEE0",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple Watch Series 3 - 38mm",
"udid" : "078BF157-30FA-41D1-94FA-6B1686E03085",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple Watch Series 3 - 42mm",
"udid" : "E4CE652E-0185-4C59-B965-BED5FCEE7C76",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple Watch Series 4 - 40mm",
"udid" : "6621323A-A9DE-4BCB-AC97-54C8C33B0158",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple Watch Series 4 - 44mm",
"udid" : "D89037A3-66A0-43C1-90BA-E7C76CA0D724",
"availabilityError" : ""
}
],
"com.apple.CoreSimulator.SimRuntime.tvOS-12-1" : [
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple TV",
"udid" : "AFAA21B8-BD4A-45EA-B0FF-E9915FE9B926",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple TV 4K",
"udid" : "EBB88F2E-CFFE-4981-A736-7A7C0B85643D",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "Apple TV 4K (at 1080p)",
"udid" : "F0B73E8A-986E-447E-B37A-2F46096DEFF6",
"availabilityError" : ""
}
],
"com.apple.CoreSimulator.SimRuntime.iOS-12-1" : [
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 5s",
"udid" : "F870B7FA-6DDA-4336-89AD-68A402844188",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 5s",
"udid" : "6627ADE5-F8C1-4AE5-BD6F-3AEDDC0B7B63",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 6",
"udid" : "05574997-ACAD-40CA-A3D7-5624D53F00FA",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 6 Plus",
"udid" : "93237078-CA6D-4F97-93F9-779809700018",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 6s",
"udid" : "9B50FE18-4F49-4EA4-80F0-DF498A667D33",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 6s Plus",
"udid" : "D4640B6D-97DC-4CA1-BE63-C5403159A3D4",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 7",
"udid" : "6E9EEC00-3291-42B4-B04A-BA3487F9CD5F",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 7 Plus",
"udid" : "6DA1C3CF-1D1F-4DEF-9B74-2C40D5FB5881",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 8",
"udid" : "E19386B9-469A-450B-9CD2-B4FE8687DCF9",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone 8 Plus",
"udid" : "6D36DF76-8ED9-41A2-9E1A-0BA48B92C26E",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone SE",
"udid" : "EE4818DF-F817-4441-8A1C-BE1B99303E10",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone X",
"udid" : "85B78A8F-C32B-4493-BDD1-65ECA3F77C86",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone X",
"udid" : "CA12C337-4F66-4C6C-ACE5-7F7EACCBC39A",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone XS",
"udid" : "8BBCE315-2F4C-4132-8E53-28AF52401C8E",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone XS Max",
"udid" : "4E77C62F-AB1F-4EDE-839B-53F70CAFC79E",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPhone XR",
"udid" : "28D12ABE-3355-4862-960A-0FE5FFE41C7B",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad Air",
"udid" : "94485C88-BCEB-456A-95DC-5F8C3DA8D181",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad Air 2",
"udid" : "CF2C787D-A378-4AB9-B334-F7B24E94AF4D",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad (5th generation)",
"udid" : "DFE602A5-EC68-4585-8AB0-C045A9843D29",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad Pro (9.7-inch)",
"udid" : "5A3F3EAC-F788-49F1-A753-5D34A9990F0B",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad Pro (12.9-inch)",
"udid" : "EF6EBE34-0A85-4FF0-8A45-7BA418A0CC0C",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad Pro (12.9-inch) (2nd generation)",
"udid" : "FBA940F8-FD85-4D5E-A570-EB4F3A56E1F9",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad Pro (10.5-inch)",
"udid" : "8AE4AAED-ECE0-4984-9679-8D3022064692",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad (6th generation)",
"udid" : "1121363D-EF49-4AC0-9E46-5C30318A24A2",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad Pro (11-inch)",
"udid" : "038FECC0-8711-46E3-B601-8F88F2F4AD7D",
"availabilityError" : ""
},
{
"availability" : "(available)",
"state" : "Shutdown",
"isAvailable" : true,
"name" : "iPad Pro (12.9-inch) (3rd generation)",
"udid" : "12DC911F-2F45-4767-BC1A-6F1D0C8D9F3D",
"availabilityError" : ""
}
]
},
"pairs" : {
"C9B69F4A-6A9D-44F3-A6BC-56BFA2F8B83F" : {
"watch" : {
"name" : "Apple Watch Series 4 - 44mm",
"udid" : "D89037A3-66A0-43C1-90BA-E7C76CA0D724",
"state" : "Shutdown"
},
"phone" : {
"name" : "iPhone XS Max",
"udid" : "4E77C62F-AB1F-4EDE-839B-53F70CAFC79E",
"state" : "Shutdown"
},
"state" : "(active, disconnected)"
},
"5327B65F-29E7-42D0-9861-FF31428F3218" : {
"watch" : {
"name" : "Apple Watch Series 4 - 40mm",
"udid" : "6621323A-A9DE-4BCB-AC97-54C8C33B0158",
"state" : "Shutdown"
},
"phone" : {
"name" : "iPhone XS",
"udid" : "8BBCE315-2F4C-4132-8E53-28AF52401C8E",
"state" : "Shutdown"
},
"state" : "(active, disconnected)"
}
}
To fix this error, simply reinstall project & node modules using npm
npm install
Then it will show a list of warnings, and to fix them use the following command:
npm audit fix
This should fix everything, and allow you to run iOS emulator
react-native run-ios
Edited:
I copied your devices section of your output JSON and embedded to my own /node_modules/react-native/local-cli/runIOS/runIOS.js
function runOnSimulator(xcodeProject, args, scheme) {
return new Promise(resolve => {
try {
var simulators = {devices section of your json}; //Here
} catch (e) {
console.log("e", e);
throw new Error('Could not parse the simulator list output');
}
const selectedSimulator = findMatchingSimulator(simulators, args.simulator);
console.log("selected", selectedSimulator);
if (!selectedSimulator) {
throw new Error(`Could not find ${args.simulator} simulator`);
}
...
And finally, it gave the same error as yours. So I figured out that parsing version of devices different. In your devices, version is;
"com.apple.CoreSimulator.SimRuntime.tvOS-12-1" //for tvOS
"com.apple.CoreSimulator.SimRuntime.iOS-12-1" // for iOS
but in react-native checks this version values like this(/node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js);
// Making sure the version of the simulator is an iOS or tvOS (Removes Apple Watch, etc)
if (!version.startsWith('iOS') && !version.startsWith('tvOS')) {
continue;
}
So react-native can not recognize.
If we change this code with this;
// Making sure the version of the simulator is an iOS or tvOS (Removes Apple Watch, etc)
if (!version.startsWith('com.apple.CoreSimulator.SimRuntime.iOS') && !version.startsWith('com.apple.CoreSimulator.SimRuntime.tvOS')) {
continue;
}
the problem was solved. I checked that with your JSON data in my computer and it worked.
PROBLEM
If you try this with the latest Xcode (11), there is no iPhone X!
Run Simulator by itself, in the top menu, look under Hardware, Device, iOS 13.0. You will see there is:
- iPhone 8
- iPhone 8 Plus
- iPhone XS
- iPhone XS Max
- iPhone XR
- ... and some iPads
When you execute run-ios, react-native is designed to match a requested device.
The internally hard coded default is iPhone X.
The function that tries to match the requested device is in:
/node_modules/@react-native-community/cli-platform-ios/build/commands/runIOS/findMatchingSimulator.js
This function is designed so you can give it a device, and an optional version number.
If the given device and version cannot be found, it will return a match using the first device in the list by default.
But... in reality, the first device is a watch, and any watch is excluded from matching, so this function will return null.
SOLUTION 1 - Use an existing Xcode device
Run Simulator first by itself, as described above, and make a note of which iPhone or iPad you want.
Then pass this name as an optional argument the the run-ios command line command as follows:
react-native run-ios --simulator="iPhone 8"
SOLUTION 2 - Add New Xcode iOS Device
According to Xcode 11 Release Notes:
"Xcode no longer creates every available iOS simulator device by default. Instead a set of the most commonly used devices are created. To create other devices — or multiple instances of a device — open the Devices window, select Simulators, click the + button, enter a name, and select the relevant device type and OS version. In Terminal, execute the xcrun simctl create command, for example xcrun simctl create "My iPhone 7" "iPhone 7" iOS13.0. (49428617)"
In Xcode, you need to add a new device called "iPhone X".
Also I answered here: React Native Issue #2328