iOS cocoapods1.5.3 版本更新

由于xcode更新到10，pod不支持，故而要更新pod到最新版1.5.3。在更新的时候，遇到了问题.。执行sudo gem update cocoapods的时候，输出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)。遇到这个问题，可能要先更新gem的sources。

1、查看gem的sources

sycarnetMacmini:~ sycarnet$ gem sources -l

*** CURRENT SOURCES ***

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

2、更换gem的sources

sycarnetMacmini:~ sycarnet$ gem sources --remove https://gems.ruby-china.org/

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

sycarnetMacmini:~ sycarnet$ gem sources --add https://gems.ruby-china.com/ 

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

sycarnetMacmini:~ sycarnet$ gem sources -l

*** CURRENT SOURCES ***

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

3、更新gem

sycarnetMacmini:~ sycarnet$ gem update --system

Updating rubygems-update

......

RubyGems system software updated

sycarnetMacmini:~ sycarnet$ gem -v

2.7.7

4、更新pod

sudo gem update cocoapods

5、注意：此时pod更新不了可以尝试先删除pod，再安装

sycarnetMacmini:~ sycarnet$ which pod

/usr/local/bin/pod

sycarnetMacmini:~ sycarnet$ rm -rf /usr/local/bin/pod

sycarnetMacmini:~ sycarnet$ sudo gem install cocoapods

Password:

Fetching: cocoapods-core-1.5.3.gem (100%)

Successfully installed cocoapods-core-1.5.3

Fetching: cocoapods-1.5.3.gem (100%)

Successfully installed cocoapods-1.5.3

Parsing documentation for cocoapods-core-1.5.3

Installing ri documentation for cocoapods-core-1.5.3

Parsing documentation for cocoapods-1.5.3

Installing ri documentation for cocoapods-1.5.3

Done installing documentation for cocoapods-core, cocoapods after 4 seconds

2 gems installed

sycarnetMacmini:~ sycarnet$ pod --version

1.5.3

第一次写，写得不好，希望能帮到您。