mac 升级到10.13,CocoaPods不能使用了。

本文介绍了在使用CocoaPods时遇到的权限错误问题及解决方案。主要错误为执行gem命令时提示没有/Library/Ruby/Gems/2.3.0目录的写权限。提供了解决步骤包括更新gem系统和安装cocoapods。

终端输入: pod install

报错:

While executing gem ... (Gem::FilePermissionError)

    You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory.


解决方法:

1、 sudo gem update --system    

2、 sudo gem install -n /usr/local/bin cocoapods

3、 再去使用pod就可以使用了。



Learn Cocoa on the Mac by Jack Nutting, David Mark and Jeff LaMarche The Cocoa frameworks are some of the most powerful frameworks for creating native desktop applications available on any platform today, and Apple gives them away, along with the Xcode development environment, for free! However, for a first-time Mac developer, just firing up Xcode and starting to browse the documentation can be a daunting task. The Objective-C class reference documentation alone would fill thousands of printed pages, not to mention all the other tutorials and guides included with Xcode. Where do you start? Which classes are you going to need to use? How do you use Xcode and the rest of the tools? This book answers these questions and more, helping you find your way through the jungle of classes, tools, and new concepts so that you can get started on the next great Mac OS X application today. Jack Nutting is your guide through this forest; he's lived here for years, and he'll show you which boulder to push, which vine to chop, and which stream to float across in order to make it through. You will learn not only how to use the components of this rich framework, but also which of them fit together, and why. What you’ll learn How to actually make your own Cocoa applications—this is much more than just a quick introduction to Cocoa! Which classes, of the dozens included in Cocoa, are truly central to Cocoa development How to best use MVC architecture concepts in a Cocoa application How the various pieces of the Cocoa frameworks fit with each other and into the MVC architecture Which parts of Cocoa truly enable “visual programming”, letting you reap the benefits of proven, reusable code libraries that Apple gives you for free How to recognize recurring design patterns used throughout Cocoa, and put them to proper use in your own code How to approach Cocoa from different programming environments How to use the facilities provided in Snow Leopard to create software that distributes itself automatically among all available CPUs, improving the user experience for your users.
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