背景

在多人开发时，将git上项目clone下来进行pod install后，发现sourceTree上未暂存文件中xxx/Podfile.lock文件有变动，看下图

第三方库版本

CocoaPods版本

从上图可以发现，由于本地cocoapods版本是1.6.1，git远端pod版本为1.7.1

由于cocoapods版本不一致，同一份Podfile， pod install出来的第三方库版本可能会不同

第三方库版本如何查看？通过Podfile.lock文件查看

升级pod版本

既然本地cocoapods版本比较低，那就得升级CocoaPods版本

查看版本 pod --version

Frankkkk-2:~ aladin$ pod --version

1.5.3

查看Ruby源地址

Frankkkk-2:~ aladin$ gem source -l

*** CURRENT SOURCES ***

https://gems.ruby-china.org/

当前源地址为：https://gems.ruby-china.org/

运行sudo gem install cocoapods

Frankkkk-2:~ aladin$ sudo gem install cocoapods

Password:

ERROR: Could not find a valid gem 'cocoapods' (>= 0), here is why:

Unable to download data from https://gems.ruby-china.org/ - bad response Not Found 404 (https://gems.ruby-china.org/specs.4.8.gz)

发现运行命令报错，原因是https://gems.ruby-china.org/地址找不到

用浏览器打开https://gems.ruby-china.org/，

ruby源地址报错

上图中已经说明了域名已经更换了，那么换一下ruby源就好了。

更换ruby源，删掉失效的源

Frankkkk-2:~ aladin$ gem sources --remove https://gems.ruby-china.org/

https://gems.ruby-china.org/ removed from sources

添加可用的源

Frankkkk-2:~ aladin$ gem sources -a https://gems.ruby-china.com

https://gems.ruby-china.com added to sources

查看当前源

Frankkkk-2:~ aladin$ gem source -l

*** CURRENT SOURCES ***

https://gems.ruby-china.com

至此，ruby源已经更新成功！

安装升级pod

运行命令sudo gem install cocoapods

Frankkkk-2:~ aladin$ sudo gem install cocoapods

Password:

Fetching: cocoapods-core-1.7.1.gem (100%)

Successfully installed cocoapods-core-1.7.1

Fetching: cocoapods-deintegrate-1.0.4.gem (100%)

Successfully installed cocoapods-deintegrate-1.0.4

Fetching: cocoapods-downloader-1.2.2.gem (100%)

Successfully installed cocoapods-downloader-1.2.2

Fetching: cocoapods-trunk-1.3.1.gem (100%)

Successfully installed cocoapods-trunk-1.3.1

Fetching: molinillo-0.6.6.gem (100%)

Successfully installed molinillo-0.6.6

Fetching: atomos-0.1.3.gem (100%)

Successfully installed atomos-0.1.3

Fetching: xcodeproj-1.9.0.gem (100%)

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

You don't have write permissions for the /usr/bin directory.

安装过程中，报了权限错误 ERROR: While executing gem ... (Gem::FilePermissionError)

You don't have write permissions for the /usr/bin directory.。

解决办法：运行sudo gem install -n /usr/local/bin cocoapods

Frankkkk-2:~ aladin$ sudo gem install -n /usr/local/bin cocoapods

Successfully installed xcodeproj-1.9.0

Fetching: fourflusher-2.3.0.gem (100%)

Successfully installed fourflusher-2.3.0

Fetching: ruby-macho-1.4.0.gem (100%)

Successfully installed ruby-macho-1.4.0

Fetching: cocoapods-1.7.1.gem (100%)

Successfully installed cocoapods-1.7.1

Parsing documentation for xcodeproj-1.9.0

Installing ri documentation for xcodeproj-1.9.0

Parsing documentation for fourflusher-2.3.0

Installing ri documentation for fourflusher-2.3.0

Parsing documentation for ruby-macho-1.4.0

Installing ri documentation for ruby-macho-1.4.0

Parsing documentation for cocoapods-1.7.1

Installing ri documentation for cocoapods-1.7.1

Done installing documentation for xcodeproj, fourflusher, ruby-macho, cocoapods after 5 seconds

4 gems installed

安装完成后，再次确认pod版本

Frankkkk-2:~ aladin$ pod --version

1.7.1

到此，终于将pod升级到最新的1.7.1版本了。

最后，别忘了切到工程目录下，重新pod install 一下