React Native - iOS - 无效的 `Podfile` 文件:未定义的方法 `[]' 为 nil:NilClass

问题描述

我刚刚开始使用 React Native.我正在关注官方文档中的 React Native CLI 快速入门.这也意味着我是最新的 React Native 版本 0.61.2.

I have just started out with React Native. I was following the React Native CLI Quickstart from the official documentation. That does also mean I am up to date with React Native version 0.61.2.

从那以后我做了一些基本的 UI，在 iPhone 模拟器中检查结果.它在运行 react-native run-ios 时工作，并没有真正接触 ios/Podfile 太多.

Since then I have done some basic UI, checking with the result in the iPhone simulator. It works when running react-native run-ios, not really touching the ios/Podfile too much.

我的问题是在我的 ios/ 文件夹中运行 pod install 总是导致错误！现在这成为一个问题，我需要安装其他软件包.但是默认 Podfile 已经失败了！

My problem is running pod install inside my ios/ folder always results in an error! This becomes a problem now where I need to install additional packages. But it is already failing with default Podfile!

错误信息:

[!] Invalid `Podfile` file: undefined method `[]' for nil:NilClass.

 #  from /Users/marcel/Projekte/WerBinIch/ios/Podfile:43
 #  -------------------------------------------
 #
 >    use_native_modules!
 #  end
 #  -------------------------------------------

ios/Podfile

platform :ios, '9.0'
require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'

target 'WerBinIch' do
  # Pods for WerBinIch
  pod 'FBLazyVector', :path => "../node_modules/react-native/Libraries/FBLazyVector"
  pod 'FBReactNativeSpec', :path => "../node_modules/react-native/Libraries/FBReactNativeSpec"
  pod 'RCTRequired', :path => "../node_modules/react-native/Libraries/RCTRequired"
  pod 'RCTTypeSafety', :path => "../node_modules/react-native/Libraries/TypeSafety"
  pod 'React', :path => '../node_modules/react-native/'
  pod 'React-Core', :path => '../node_modules/react-native/'
  pod 'React-CoreModules', :path => '../node_modules/react-native/React/CoreModules'
  pod 'React-Core/DevSupport', :path => '../node_modules/react-native/'
  pod 'React-RCTActionSheet', :path => '../node_modules/react-native/Libraries/ActionSheetIOS'
  pod 'React-RCTAnimation', :path => '../node_modules/react-native/Libraries/NativeAnimation'
  pod 'React-RCTBlob', :path => '../node_modules/react-native/Libraries/Blob'
  pod 'React-RCTImage', :path => '../node_modules/react-native/Libraries/Image'
  pod 'React-RCTLinking', :path => '../node_modules/react-native/Libraries/LinkingIOS'
  pod 'React-RCTNetwork', :path => '../node_modules/react-native/Libraries/Network'
  pod 'React-RCTSettings', :path => '../node_modules/react-native/Libraries/Settings'
  pod 'React-RCTText', :path => '../node_modules/react-native/Libraries/Text'
  pod 'React-RCTVibration', :path => '../node_modules/react-native/Libraries/Vibration'
  pod 'React-Core/RCTWebSocket', :path => '../node_modules/react-native/'

  pod 'React-cxxreact', :path => '../node_modules/react-native/ReactCommon/cxxreact'
  pod 'React-jsi', :path => '../node_modules/react-native/ReactCommon/jsi'
  pod 'React-jsiexecutor', :path => '../node_modules/react-native/ReactCommon/jsiexecutor'
  pod 'React-jsinspector', :path => '../node_modules/react-native/ReactCommon/jsinspector'
  pod 'ReactCommon/jscallinvoker', :path => "../node_modules/react-native/ReactCommon"
  pod 'ReactCommon/turbomodule/core', :path => "../node_modules/react-native/ReactCommon"
  pod 'Yoga', :path => '../node_modules/react-native/ReactCommon/yoga'

  pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
  pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec'
  pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec'


  target 'WerBinIchTests' do
    inherit! :search_paths
    # Pods for testing
  end

  use_native_modules!
end

我不知道如何处理这个！我不知道 Podfile 和 xcode 文件是如何工作的！我试图删除完成重置的文件夹.更重要的是，我不知道错误消息可能意味着什么.

I have no idea how to deal with this! I have no idea how the Podfile and the thing with the xcode files really work! I was trying to delete folders accomplishing a reset. More than that I have no idea what the error message could mean.

推荐答案

当你cd到ios文件夹并运行pod install"时会发生这个错误并且是因为您通过

This error happens when you cd to ios folder and run "pod install"and is because you added a new react native module by

npm -i package

而不是使用纱线

纱线添加包

要解决此问题，只需转到 package.json 所在的主要 react native 项目文件夹，然后再次运行以下命令

To solve this problem, just go to the main react native project folder where package.json is and run the command below again

纱线缓存清洁

纱线添加包

然后尝试 cd 到 ios 文件夹并运行pod install"，就不会再有错误了.希望这可以帮助其他也面临同样问题的人.

Then try cd to the ios folder and run "pod install" and there will no more errors. Hope this can help the other people who are also facing the same problem.

这篇关于React Native - iOS - 无效的 `Podfile` 文件:未定义的方法 `[]' 为 nil:NilClass的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！