`react-native run-ios` 返回错误：找不到 iPhone X 模拟器
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【中文标题】`react-native run-ios` 返回错误：找不到 iPhone X 模拟器【英文标题】：`react-native run-ios` returns Error: Could not find iPhone X simulator 【发布时间】：2019-06-27 11:33:15 【问题描述】：每当我运行react-native run-ios 时，我都会得到
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)
但是，当我在 Xcode 上运行时，它运行良好
"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)"
【问题讨论】：
你的 xcode 版本是多少？ 我的xcode版本是10.1 你使用哪个版本的 react-native？因为某些版本的 react-native 存在与此问题相关的问题 npmPackages: react: 16.6.3 => 16.6.3 react-native: ^0.58.3 => 0.58.3 我以为这是最新版本 【参考方案1】：为我解决的问题是没有设置 Xcode 命令行工具（xcrun simctl 失败。）如果您刚刚重新安装 Xcode，您可能会遇到此问题。
请参阅this post 了解如何设置命令行工具。之后，尝试运行react-native run-ios --simulator="iPhone 11"（或任何你的模拟器名称）。
【讨论】：
【参考方案2】：我遇到了同样的问题
npm 审计修复
这对我有用
【讨论】：
也在这个答案中工作过：***.com/a/55411403/4294399【参考方案3】：要修复此错误，只需使用 npm 重新安装项目和节点模块
npm install
然后它将显示警告列表，并使用以下命令修复它们：
npm audit fix
这应该可以解决所有问题，并允许您运行 iOS 模拟器
react-native run-ios
【讨论】：
它与 npm 无关，因为它只会安装或审核节点模块 这为我修复了它......没有接受公认的答案。谢谢！ @Firu 但是我们现在至少有三个人解决了这个问题。 这对我不起作用。react-native --version -> react-native-cli: 2.0.1 react-native: 0.57.7 react-native info -> macOS 10.14.4 Platforms: iOS 12.2 Xcode: 10.2/10E125
恕我直言，这应该是正确的答案。更改 node_modules 文件不应该是一个有效的答案。当您出于任何原因将node_modules 文件夹丢弃时，它会回来咬您。【参考方案4】：
我在尝试将 React Native 从 0.59.8 升级到 0.59.9 后遇到了这个问题。
事实证明（基于上述答案），我们需要更新@react-native-community/cli 模块：
-
从锁定文件中删除它（
yarn.lock 或 package-lock.json）
运行yarn 或npm install 重新安装。
参考：https://github.com/react-native-community/rn-diff-purge/issues/21#issuecomment-507645945
【讨论】：
【参考方案5】：当我将我的 Xcode 10 升级到 Xcode 11 时，我遇到了同样的错误，但是指定模拟器版本恰好是我的快速修复。
首先列出所有可用的 ios 模拟器
xcrun simctl list devices | grep iPhone | grep -v unavailable | cut -d'(' -f1
结果
然后选择一个来运行 react-native ，例如
react-native run-ios --simulator='iPhone 11 Pro Max'
【讨论】：
我认为这应该可以，但对我没有用，我尝试打开和关闭相关的模拟器【参考方案6】：问题
如果你用最新的 Xcode (11) 试试这个，就没有 iPhone X！
自行运行模拟器，在顶部菜单中，查看硬件、设备、iOS 13.0 下。 你会看到有：
iPhone 8 iPhone 8 Plus iPhone XS iPhone XS Max iPhone XR ...和一些 iPad当您执行run-ios 时，react-native 旨在匹配请求的设备。
内部硬编码默认为 iPhone X。
尝试匹配请求设备的函数在：
/node_modules/@react-native-community/cli-platform-ios/build/commands/runIOS/findMatchingSimulator.js
此功能的设计目的是让您可以给它一个设备和一个可选的版本号。
如果找不到给定的设备和版本，它将默认使用列表中的第一个设备返回匹配项。
但是……实际上，第一个设备是手表，任何手表都被排除在匹配之外，所以这个函数会返回null。
解决方案 1 - 使用现有的 Xcode 设备
首先单独运行模拟器，如上所述，并记下您想要哪款 iPhone 或 iPad。
然后将此名称作为可选参数传递给 run-ios 命令行命令，如下所示：
react-native run-ios --simulator="iPhone 8"
解决方案 2 - 添加新的 Xcode iOS 设备
根据Xcode 11 Release Notes：
“默认情况下，Xcode 不再创建每个可用的 iOS 模拟器设备。而是创建一组最常用的设备。要创建其他设备 - 或设备的多个实例 - 打开设备窗口，选择模拟器，单击+ 按钮，输入名称，选择相关的设备类型和操作系统版本。在终端中，执行 xcrun simctl create 命令，例如 xcrun simctl create "My iPhone 7" "iPhone 7" iOS13.0. (49428617)"
在 Xcode 中，您需要添加一个名为“iPhone X”的新设备。
我也在这里回答：React Native Issue #2328
【讨论】：
非常感谢，您拯救了这一天。在 ios 13+ 的情况下，这是最简单且迄今为止最准确的解决方案，而不是手动配置更改。就个人而言，这应该被标记为接受的答案。 这应该是公认的答案，以及如何从 iPhone X 更改 RN 默认值的快速说明 iOS 13.0 模拟器现在不包括除了最常用的设备之外的所有可用设备，如果您需要其他设备（例如 iPhone 7、iPhone X），您需要手动创建它们。参考在这里：developer.apple.com/documentation/xcode_release_notes/… 这个已修复，应该是主要答案。 我只是直接在 XCode 中将 iPhone X 添加到可用设备列表中。现在可以找到了！【参考方案7】：对我来说，我必须通过运行 npx react-native-git-upgrade 将 React Native 更新到 0.60。
【讨论】：
【参考方案8】：在我的情况下，我尝试了其他上述解决方案，但没有任何效果。
然后我尝试将 react-native 从 0.59.5 升级到 0.59.10 然后就解决了
【讨论】：
在尝试了一切之后，我将版本从0.59.5 更改为 0.59.10 并解决了这个问题，很好的建议:)【参考方案9】：
对于 Xcode 11.2 和 iOS 13.2，这是我为在模拟器中运行应用所做的更改
在findMatchingSimulator.js
第 43 行：
if (!version.startsWith('iOS') && !version.startsWith('tvOS'))
到
if (!version.includes('iOS') && !version.includes('tvOS'))
行
第 52 行
if (
simulator.availability !== '(available)' &&
simulator.isAvailable !== 'YES'
)
continue;
到
if (
simulator.isAvailable != true
)
continue;
附言
React 项目广告的第一天就已经降价了！ （没有）
【讨论】：
【参考方案10】：在我将 Xcode 更新到版本 11 后，我遇到了同样的问题。
解决方案是将 iPhone X 模拟器添加到您的列表中。
选择模拟器 -> 硬件 -> 管理设备（您将看到一个弹出窗口）
选择“模拟器”->（左下角）+（加号图标，“过滤器”旁边）然后添加一个新模拟器，
模拟器名称：iPhone X 设备类型：选择 iPhone X。
它对我有用
【讨论】：
这是正确的 2019 年解决方案? 绝对是要走的路。遇到了 2 个小问题：1- 必须将我的新“iPhone X”模拟器与 iOS 12.4 运行时配对 2- 必须将simulator.isAvailable !== true 中的 simulator.isAvailable !== true 替换为 node_modules/@react-native-community/cli/build/commands/runIOS/findMatchingSimulator.js【参考方案11】：
我的问题是没有安装 iPhone X 模拟器
你可以查看安装了哪些模拟器
xcrun simctl list devices | grep iPhone | grep -v unavailable | cut -d'(' -f1
然后运行
react-native run-ios --simulator="iPhone Xs"
【讨论】：
【参考方案12】：改变
/node_modules/@react-native-community/cli-platform-ios/build/commands/runIOS/index.js
文件
options: [
name: '--simulator [string]',
description: 'Explicitly set simulator to use. Optionally include iOS version between' + 'parenthesis at the end to match an exact version: "iPhone 6 (10.0)"',
default: 'iPhone X'
到
options: [
name: '--simulator [string]',
description: 'Explicitly set simulator to use. Optionally include iOS version between' + 'parenthesis at the end to match an exact version: "iPhone 6 (10.0)"',
default: 'iPhone 8'
【讨论】：
【参考方案13】：我也没有在 Xcode 上安装 iPhone X 作为模拟器。我所要做的就是在 Xcode 中添加 iPhone X 作为新的模拟器，一切都很好。
在 Xcode 中：转到 Window，然后转到 Devices and Simulators。单击模拟器选项卡。点击左下角+按钮，添加iPhone X。
我希望这个修复对你和我一样容易。
【讨论】：
就这么简单，至少对我来说。【参考方案14】：您的机器上没有 iPhone X 模拟器，很可能是因为您更新了 Xcode。您可以简单地传递可用模拟器的名称，如下所示：
react-native run-ios --simulator="iPhone 11"
要检查可用的模拟器，您可以打开 Xcode 并检查设备列表，如下所示：
【讨论】：
【参考方案15】：轻松解决...
Xcode -> 首选项 -> 组件安装 ios 12.2 sumulator
【讨论】：
@velvetlnk - 我的只涨到了 安装任何低于13的ios版本【参考方案16】：每次更新 Xcode 时都会遇到同样的问题。 我运行这个命令：
sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService
然后我再次运行react-native run-ios。
【讨论】：
【参考方案17】：只需重新启动计算机并再次运行命令。
【讨论】：
【参考方案18】：我在更新 Xcode 时遇到了这个问题。所有的模拟器都不可用/卸载。我正在重新安装它们。
【讨论】：
【参考方案19】：使用 react-native-cli 2.0.1，您可能只想重命名您的模拟器。默认情况下，Xcode 会以<DeviceName> (<DeviceSize>) 的格式命名一些设备。但是，此版本的 CLI 将括号中的任何内容解释为 iOS 版本。
在尝试运行名为 iPad Pro (10.5-inch) 的模拟器时，我只需将模拟器重命名为 iPad Pro [10.5-inch] 即可运行它。
您可以使用模拟器应用程序的Hardware->Device->Manage Devices... 菜单重命名模拟器，然后右键单击您的模拟器之一（在 Xcode 10.2.1 中）
【讨论】：
【参考方案20】：如果在 runSimulator.js 中替换以下代码行后，找不到模拟器仍然存在。
runSimulator.js 的路径 -> /node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js
if (!version.startsWith('iOS') && !version.startsWith('tvOS')) continue;
这个
if ( !version.startsWith('com.apple.CoreSimulator.SimRuntime.iOS') && !version.startsWith('com.apple.CoreSimulator.SimRuntime.tvOS') ) continue;
替换后评论以下行
if ( simulator.availability !== '(available)' && simulator.isAvailable !== 'YES' ) continue;
它将毫无问题地启动 iPhone 模拟器。
更新到 XCode 11 后的第二种方法
Xcode 11 xcrun 像以前一样为 isAvailable 属性返回 true 或 false 而不是 YES 或 NO。 您可以使用以下命令进行检查
xcrun simctl list devices --json
上面的命令将打印所有可用的设备，如下所示
"com.apple.CoreSimulator.SimRuntime.iOS-12-2" : [
"state" : "Booted",
"isAvailable" : true,
"name" : "iPhone X",
"udid" : "E53748D1-628B-4A99-A419-4D7AE7CE4745"
]
在以下代码中将 YES 替换为 true
if ( simulator.availability !== '(available)' && simulator.isAvailable !== 'YES' ) continue;
像这样
if ( simulator.availability !== '(available)' && simulator.isAvailable !== true ) continue;
【讨论】：
是的，这就是我的问题，更新到 xcode 11 后我开始收到此错误。用 true 替换 'YES' 就可以了。【参考方案21】：更新到 Xcode 11 后，xcrun 返回 true 或 false，而不是像以前那样返回 YES 或 NO。
转到 /node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js 并在
找到
if (
simulator.availability !== '(available)' &&
simulator.isAvailable !== 'YES'
)
continue;
并将其更改为
if (
simulator.availability !== '(available)' &&
simulator.isAvailable !== true
)
continue;
【讨论】：
这对我也有用。发现它不同的目录。 node_modules/@react-native-community/cli/build/commands/runIOS/findMatchingSimulator.js 他们又改了（wtf）/node_modules/@react-native-community/cli-platform-ios/build/commands/runIOS/findMatchingSimulator.js
我找不到 (wtf)
太糟糕了。这里也一样。在早期版本的 XCode 中，我不得不将 version.startsWith 更改为 version.includes，这已得到修复。现在，再往下几行，将“是”改为真......一个永无止境的故事?
不得不在社区包中更改它，工作，谢谢【参考方案22】：
在我的情况下，我运行脚本： sed -i '' 's/startsWith/includes/g' node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js 它奏效了。 也适合不能更新 react-native 的人
【讨论】：
【参考方案23】：打开文件/node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js
!version.startsWith('iOS') - > !version.包括('iOS')
【讨论】：
【参考方案24】：编辑：
我复制了输出 JSON 的设备部分并嵌入到我自己的 /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`);
...
最后，它给出了和你一样的错误。所以我发现设备的解析版本不同。在您的设备中，版本是；
"com.apple.CoreSimulator.SimRuntime.tvOS-12-1" //for tvOS
"com.apple.CoreSimulator.SimRuntime.iOS-12-1" // for iOS
但是在 react-native 中会像这样检查这个版本值(/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;
所以 react-native 无法识别。 如果我们用这个改变这段代码；
// 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;
问题解决了。我在我的计算机中检查了你的 JSON 数据，它确实有效。
【讨论】：
讨厌这行得通 - 有人有更永久的解决方案吗？ 如果有人专门运行 iPhone XR（即react-native run-ios --simulator='iPhone XR'），请使用以下代码，react-native run-ios --simulator='iPhone Xʀ'。使用小写的 r 将不起作用。
长期的修复是等待react-native-cli 的下一个版本，这里修复了github.com/react-native-community/react-native-cli/pull/274
这是怎么回答的？！？！？！？！你不要乱用这样的插件
这不再起作用了。截至今天，runIOS 文件夹不在 node_modules 的 react-native 文件夹中。还有其他修复吗？【参考方案25】：
临时修复：
第一步：打开文件/node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js
第 2 步：更改一行代码，从此：
if (!version.startsWith('iOS') && !version.startsWith('tvOS'))
continue;
到这里：
if (!version.startsWith('com.apple.CoreSimulator.SimRuntime.iOS') && !version.startsWith('com.apple.CoreSimulator.SimRuntime.tvOS'))
continue;
第 3 步：运行 react-native run-ios（您可能需要运行两次，如果 Metro Bundler [在后台运行的控制台] 从您的之前的构建失败！）
问题在于，在更新 Xcode 之后 - 模拟器命名空间被添加到设备的版本列表中。 React Native 构建不期望这些命名空间 - 因此构建中断。
【讨论】：
我找不到runIOS目录。有什么建议吗？ 使用--verbose 标志运行react-native run-ios。它将指示上述逻辑所在的文件。以上是关于`react-native run-ios` 返回错误：找不到 iPhone X 模拟器的主要内容，如果未能解决你的问题，请参考以下文章
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