react-native run-ios找不到任何模拟器

Question

无论我添加到--simulator参数的模拟器，我一直面临着'react-native run-ios'无法启动的问题。 XCode具有'命令行工具'的正确位置

我总是得到错误：找不到iPhone X模拟器

Error: Could not find iPhone X simulator
    at resolve (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:149:13)
    at new Promise (<anonymous>)
    at runOnSimulator (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:134:10)
    at Object.runIOS [as func] (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:106:12)
    at Promise.resolve.then (/Users/eric/.../swim/node_modules/react-native/local-cli/cliEntry.js:117:22)

反应原生信息

>   React Native Environment Info:
>     System:
>       OS: macOS 10.14.2
>       CPU: (12) x64 Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz
>       Memory: 6.76 GB / 32.00 GB
>       Shell: 3.2.57 - /bin/bash
>     Binaries:
>       Node: 10.15.0 - /usr/local/bin/node
>       Yarn: 1.13.0 - /usr/local/bin/yarn
>       npm: 6.4.1 - /usr/local/bin/npm
>     SDKs:
>       iOS SDK:
>         Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1
>     IDEs:
>       Android Studio: 3.1 AI-173.4819257
>       Xcode: 10.1/10B61 - /usr/bin/xcodebuild
>     npmPackages:
>       react: 16.6.3 => 16.6.3 
>       react-native: 0.57.8 => 0.57.8 
>     npmGlobalPackages:
>       create-react-native-app: 1.0.0
>       react-native-cli: 2.0.1
>       react-native-git-upgrade: 0.2.7

Answer 1

我发现了一个临时修复：

在以下文件中：

/node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js

...将第42行更改为：

if (!version.startsWith('com.apple.CoreSimulator.SimRuntime.iOS') && !version.startsWith('tvOS')) {

Answer 2

Update

它在v1.9.8中修复。

更新cli是一个简单的解决方案

npm install -g react-native-cli@latest

---

此问题已修复但尚未发布。 https://github.com/react-native-community/react-native-cli/pull/274

因此可以暂时解决以修复下面的文件。

/node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js

改变这一行

if (!version.startsWith('iOS') && !version.startsWith('tvOS')) {

至

if (!version.includes('iOS') && !version.includes('tvOS')) {

不要忘记重新安装软件包时再次应用此项。

Answer 3

做就是了

npm install

然后它会显示警告，然后使用以下命令修复它们

npm audit fix

Answer 4

从终端尝试此脚本

sed -i''s / startsWith / includes / g'node_modules / react-native / local-cli / runIOS / findMatchingSimulator.js

现在跑

react-native run-ios