升级到 Xcode 10 后找不到 iPhone 6 模拟器

Question

提问by Martin Leroux

I updated to Xcode 10 and since I did that, I can't run the simulator in terminal with the command react-native run-ios. I get this error:

我更新到 Xcode 10，因为我这样做了，所以我无法使用命令在终端中运行模拟器react-native run-ios。我收到此错误：

Could not find iPhone 6 simulator

找不到 iPhone 6 模拟器

When I go to Xcode > Window > Devices and Simulator the simulator is there and when I do xcrun simctl list devicesI also see the list of simulator.

当我转到 Xcode > Window > Devices and Simulator 时，模拟器就在那里，当我这样做时，xcrun simctl list devices我还会看到模拟器列表。

I can run the app on my phone with react-native run-ios --deviceand from Xcode, and I tried with multiple apps so it's not the app.

我可以使用react-native run-ios --deviceXcode 和从 Xcode在我的手机上运行该应用程序，并且我尝试了多个应用程序，因此它不是应用程序。

When I go to Xcode > Preferences > Locations, Xcode 10.0 (10A255) is selected at Command Line Tools.

当我转到 Xcode > Preferences > Locations 时，在命令行工具中选择了 Xcode 10.0 (10A255)。

I tried restarting the computer, as well as deleting and re-installing Xcode.

我尝试重新启动计算机，以及删除并重新安装 Xcode。

Any ideas what it could be?

任何想法可能是什么？

Here is my setup:

这是我的设置：

MacOs High Sierra 10.13.6
Xcode Version 10.0
react-native-cli: 2.0.1
react-native: 0.57.1

MacOs High Sierra 10.13.6
Xcode 10.0 版
反应原生cli：2.0.1
反应原生：0.57.1

Answer 1

回答by samernady

I went to node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js

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

And i've replaced:

我已经替换了：

if (version.indexOf('iOS') !== 0 )

with

和

if (!version.includes("iOS" ))

And

和

if (simulator.availability !== '(available)')

with

和

if (simulator.isAvailable !== true)

Answer 2

回答by Damian

I had similar issue. React Native - 0.52.3, XCode - 10.2 beta 2

我有类似的问题。React Native - 0.52.3，XCode - 10.2 beta 2

function findMatchingSimulator(simulators, simulatorName) {
  if (!simulators.devices) {
    return null;
  }
  const devices = simulators.devices;
  var match;
  for (let version in devices) {
    // Making sure the version of the simulator is an iOS (Removes Apple Watch, etc)
    if (!version.includes('iOS')) {
      continue;
    }
    [...]
  }
}

Open file: node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js
Check if your device version is correct, e.g: in line 29 console.log(version)
Compare it with condition in line 30: if (version.indexOf('iOS') !== 0) {

打开文件： node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js
检查您的设备版本是否正确，例如：在第 29 行 console.log(version)
将其与第 30 行中的条件进行比较： if (version.indexOf('iOS') !== 0) {

I had versions list like this:

我有这样的版本列表：

com.apple.CoreSimulator.SimRuntime.watchOS-5-0 -1
com.apple.CoreSimulator.SimRuntime.tvOS-12-1 -1
com.apple.CoreSimulator.SimRuntime.tvOS-12-2 -1

Any of my versions doesn't return true in this condition... If you have it

在这种情况下，我的任何版本都不会返回 true ......如果你有它

Replace version.indexOf('iOS') !== 0with !version.includes('iOS')and it solve this issue for me.

替换version.indexOf('iOS') !== 0为!version.includes('iOS')它为我解决了这个问题。

Answer 3

回答by Danny Sullivan

The bug has been fixed in react-nativeso you can update the package in the package.json:

该错误已被修复，react-native因此您可以更新 package.json 中的包：

npm install -g npm-check-updates
ncu -u react-native
npm install

Answer 4

回答by Martin Leroux

Found something that resolved my problem.
You need to go in local-cli/runIOS/findMatchingSimulator.jsin react-native node module and change line 37 for

找到了解决我的问题的东西。
您需要进入local-cli/runIOS/findMatchingSimulator.jsreact-native node 模块并更改第 37 行

if (
        simulator.availability !== '(available)' &&
        simulator.isAvailable !== 'YES'
) {`

More info on the solution and the problem on react-native github :
https://github.com/facebook/react-native/commit/1031872
https://github.com/facebook/react-native/issues/21571

有关解决方案和 react-native github 问题的更多信息：
https: //github.com/facebook/react-native/commit/1031872
https://github.com/facebook/react-native/issues/21571

Answer 5

回答by R. Calhau

I just want to share with you guys how I fixed it, maybe it can help someone.

我只是想与你们分享我是如何修复它的，也许它可以帮助某人。

Edit this file:node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js

编辑此文件：node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js

Change:

改变：

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

To:

到：

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

It worked for me.

它对我有用。

I used console.log(version)to see what I got from the variable versionand the value wasn't expected as it should be.

我使用了console.log(version)来查看我从变量version 中得到的内容，并且该值不符合预期。

Answer 6

回答by Padam Prajapati

it can be solved to fix the file below.

可以通过修复下面的文件来解决。

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

replace this line

替换这一行

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

with

和

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

Answer 7

回答by Andru

Using react-native version 0.55.3with XCode 10I had to do twochanges to get react-native run-iosrunning.

0.55.3在XCode 10 中使用 react-native 版本我必须做两个更改才能react-native run-ios运行。

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

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

The change as described by @martin-leroux :

Change

// Skipping non-available simulator
if (simulator.availability !== true) {

to

// Skipping non-available simulator
if (
    simulator.availability !== '(available)' &&
    simulator.isAvailable !== 'YES'
) {`

Change the line mentioned by @samernady :

Change

// Making sure the version of the simulator is an iOS or tvOS (Removes Apple Watch, etc)
if (!version.startsWith('iOS') && !version.startsWith('tvOS')) {

to

// Making sure the version of the simulator is an iOS or tvOS (Removes Apple Watch, etc)
if (!version.includes('iOS') && !version.startsWith('tvOS')) {

@martin-leroux 描述的变化：

改变

// Skipping non-available simulator
if (simulator.availability !== true) {

到

// Skipping non-available simulator
if (
    simulator.availability !== '(available)' &&
    simulator.isAvailable !== 'YES'
) {`

更改@samernady 提到的行：

改变

// Making sure the version of the simulator is an iOS or tvOS (Removes Apple Watch, etc)
if (!version.startsWith('iOS') && !version.startsWith('tvOS')) {

到

// Making sure the version of the simulator is an iOS or tvOS (Removes Apple Watch, etc)
if (!version.includes('iOS') && !version.startsWith('tvOS')) {

Answer 8

回答by Sercan Samet Savran

I have a self-refactored version of findMatchingSimulator.js. If someone in the future still facing this issue and the solutions mentioned above couldn't solve your problem, just overwrite the findMatchingSimulator-Method in ...node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js with following code:

我有一个 findMatchingSimulator.js 的自我重构版本。如果将来有人仍然面临此问题并且上述解决方案无法解决您的问题，只需使用以下代码覆盖 ...node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js 中的 findMatchingSimulator-Method ：

   function findMatchingSimulator(simulators, simulatorName) {
      if (!simulators.devices) {
        return null;
      }
      const devices = simulators.devices;
      var match = null;
      for(let version in devices){
          //Skip WatchOS
          if(!version.includes("tvOS") && !version.includes("iOS")){
              continue;
          }

          for(let d in devices[version]){
              var currentDevice = devices[version][d];
              if(!currentDevice.isAvailable){
                  continue;
              }
              if(currentDevice.state === "Booted" ){
                  let booted = currentDevice.state === "Booted";
                  if(currentDevice.name === simulatorName ){
                      return {
                              udid: currentDevice.udid,
                              name: currentDevice.name,
                              booted,
                              version,
                      };
                  }else if(!match){
                      //keep track of first available & bootable device
                      match = {
                         udid: currentDevice.udid,
                         name: currentDevice.name,
                         booted,
                         version,
                      };
                  }
              }
          }
      }
      if (match) {
        return match;
      }
      return null;
    }
   }

EDIT: This code will choose an already opened simulator and you're still good to go with the --simulator="NAME" parameter.

编辑：此代码将选择一个已经打开的模拟器，您仍然可以使用 --simulator="NAME" 参数。

Answer 9

回答by bowencool

xcrun simctl list --json devices

Edit node_modules/react-native/local-cli/runIOS/findMatchingSimulator.jsyourself. Ensure that the findMatchingSimulatorfunction returns an matchobject like

node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js自己编辑。确保findMatchingSimulator函数返回一个match对象，如

{
    udid: simulator.udid,
    name: simulator.name,
    version
}

Answer 10

回答by Robert Alvarez

Go to node_modules/react-native/local-cli/runIOS/ and in findMatchingSimulator.js replace line 30 with

转到 node_modules/react-native/local-cli/runIOS/ 并在 findMatchingSimulator.js 中将第 30 行替换为

if (version.indexOf('com.apple.CoreSimulator.SimRuntime.iOS') !== 0) {

升级到 Xcode 10 后找不到 iPhone 6 模拟器

提问by Martin Leroux

回答by samernady

回答by Damian

回答by Danny Sullivan

回答by Martin Leroux

回答by R. Calhau

回答by Padam Prajapati

回答by Andru

回答by Sercan Samet Savran

回答by bowencool

回答by Robert Alvarez

相关推荐

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升级到 Xcode 10 后找不到 iPhone 6 模拟器

提问by Martin Leroux

回答by samernady

回答by Damian

回答by Danny Sullivan

回答by Martin Leroux

回答by R. Calhau

回答by Padam Prajapati

回答by Andru

回答by Sercan Samet Savran

回答by bowencool

回答by Robert Alvarez

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