原文http://www.finalshares.com/read-6482?fr=gn 

CocoaPods版本升级那些坑 

下载某个ios源码后，控制器进入目录执行pod install： 

$ pod install

Analyzing dependencies

[!] The version of CocoaPods used to generate the lockfile (0.39.0) is higher than the version of the current executable (0.35.0). Incompatibility issues may arise.

因此我们需要更新cocoapods，执行下面的命令，但是并没有更新成功。

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$ gem update cocoapod

Updating installed gems

Nothing to update

查看当前版本：

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$ pod --version

0.35.0

怀疑source地址有变化：

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$ gem sources -l*** CURRENT SOURCES ***http://ruby.taobao.org/

网上查看，告知taobao服务器已经改为https协议，因此执行如下：

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$ gem sources -rhttp://ruby.taobao.org/http://ruby.taobao.org/removed from sources  $ gem sources -ahttps://ruby.taobao.org/https://ruby.taobao.org/added to sources

更新系统，提示没有权限：

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$ gem update --system

Updating rubygems-update

Fetching: rubygems-update-2.5.1.gem (100%)

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

You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.

使用sudo来执行操作：

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$ sudo gem update --system

Updating rubygems-update

Fetching: rubygems-update-2.5.1.gem (100%)

Successfully installed rubygems-update-2.5.1

Parsing documentation for rubygems-update-2.5.1

执行安装:

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$ pod setup

Setting up CocoaPods master repo

Setup completed

[!] CocoaPods was not able to update the `master` repo. If this is an unexpected issue and persists you can inspect it running `pod repo update --verbose`

根据提示执行repo更新:

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$ pod repo update --verbose  Updating spec repo `master`  $ /usr/bin/git pull --ff-only  Fromhttps://github.com/CocoaPods/Specsa0baa68..9a14a05  master    -> origin/master  error: Your local changes to the following files would be overwritten by merge:  CocoaPods-version.yml  Specs/1PasswordExtension/1.0.0/1PasswordExtension.podspec.json      Specs/1PasswordExtension/1.0.1/1PasswordExtension.podspec.json              Specs/AKUTestKit/1.1.2/AKUTestKit.podspec.json  Specs/ALCore  Aborting  Updating a5c6b67..9a14a05        [!] CocoaPods was not able to update the `master` repo. If this is an unexpected issue and persists you can inspect it running `pod repo update --verbose`

master分支还是失败，查看网上建议，先清除缓存

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rm -rf ~/.cocoapods/repos/master

再重新运行：

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$ pod setupSetting up CocoaPods master repo  CocoaPods 1.0.0.beta.2 is available.To update use: `gem install cocoapods --pre`[!] This is a test version we'd love you to try.  For more information seehttp://blog.cocoapods.organd the CHANGELOG for this versionhttp://git.io/BaH8pQ.      Setup completed

最后，到下载的ios工程目录下，执行：

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$ pod installUpdating local specs repositories  CocoaPods 1.0.0.beta.2 is available.To update use: `gem install cocoapods --pre`[!] This is a test version we'd love you to try.  For more information seehttp://blog.cocoapods.organd the CHANGELOG for this versionhttp://git.io/BaH8pQ.  Analyzing dependenciesDownloading dependenciesInstalling AFNetworking (2.6.3)Installing AFOnoResponseSerializer (1.0.0)Installing DTCoreText (1.6.17)

可见现在问题解决了！