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  • react-native run-ios “Could not find iPhone X simulator”

    问题

    这个问题发生在旧的RN版本(0.57,0.58(<0.58.4),…)和Xcode 10.3中,其中可用模拟器的名称得到了一些调整 在文件node_modules/@react native community/cli/build/commands/runIOS/findMatchingSimulator.js中,react native尝试通过简单的.startsWith检查选择正确的模拟器。由于重命名,检查现在应该使用.includes(ref)

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

    解决方案

    1. 跟新你的RN版本到0.58.4 +
    2. 如果您无法或不会升级到新的RN版本,则可以使用以下命令自动调整findMatchingSimulator.js文件:
    sed -i '' 's/startsWith/includes/g' node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js
    
    

    用这个命令就不用我们去node_modules下面手动修改源码了

    还可以把这个命令 放到package.json 的 script节点下面 指定命令 然后用npm run xx 直接执行这个命令 这样用起来更方便一些

    {
      "name": "appupdateDemo",
      "version": "0.0.1",
      "private": true,
      "scripts": {
        "start": "node node_modules/react-native/local-cli/cli.js start",
        "test": "jest",
        "fixOldRnVersion": "sed -i '' 's/startsWith/includes/g' node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js"
      },
      "dependencies": {
        "react": "16.6.1",
        "react-native": "0.57.7",
        "rn-app-upgrade": "^1.0.4"
      },
      "devDependencies": {
        "babel-jest": "24.9.0",
        "jest": "24.9.0",
        "metro-react-native-babel-preset": "0.57.0",
        "react-test-renderer": "16.6.1"
      },
      "jest": {
        "preset": "react-native"
      }
    }
    
    [topbrids@topdeMacBook-Pro appupdateDemo]$ npm run fixOldRnVersion
    
    > appupdateDemo@0.0.1 fixOldRnVersion /Users/topbrids/rn_share_pro/appupdateDemo
    > sed -i '' 's/startsWith/includes/g' node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js
    
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  • 原文地址:https://www.cnblogs.com/gdsblog/p/12042103.html
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