安装`fastlane`踩坑点。

一、重新安装ruby环境等

1.使用`fastlane init`时报`ruby`版本太低，去升级时发现不能升级，重新安装`ruby`，可是安装过后执行`rvm`命令报下面的警告。提示路径设置不正确，然后根据提示执行了`rvm get stable --auto-dotfiles`配置命令可以了。

Warning! PATH is not properly set up, /Users/huanghaipo/.rvm/gems/ruby-2.0.0-p648/bin is not at first place.

2.执行过命令

二、安装成功后不能使用，报错。

用$ fastlane init报错

/Library/Ruby/Site/2.3.0/rubygems.rb:289:in `find_spec_for_exe': can't find gem fastlane (>= 0.a) with executable fastlane (Gem::GemNotFoundException)
    from /Library/Ruby/Site/2.3.0/rubygems.rb:308:in `activate_bin_path'
    from /usr/local/bin/fastlane:23:in `'

几种安装方式都用了，都不行。

sudo gem install fastlane -NV
sudo gem install -n /usr/local/bin fastlane
brew cask install fastlane

最后把fastlane卸载，用gem install fastlane命令安装成功，可以使用。

卸载命令
$ sudo gem uninstall fastlane -NV
$ sudo gem uninstall -n /usr/local/bin fastlane 
$ brew cask uninstall fastlane

使用gem install fastlane命令安装。

三、fastlane打包失败profile和证书不匹配

原因：项目中的签名选择的是Automatic自动找的profile文件和证书不匹配，改为手动设置profile文件。

RVM detected, forcing to use system ruby
Now using system ruby.
+ xcodebuild -exportArchive -exportOptionsPlist /var/folders/qz/6s9891695732y411dq855h6c0000gn/T/gym_config20190905-29644-13wmz8c.plist -archivePath '/Users/huanghaipo/Library/Developer/Xcode/Archives/2019-09-05/317huPad 2019-09-05 14.57.10.xcarchive' -exportPath /var/folders/qz/6s9891695732y411dq855h6c0000gn/T/gym_output20190905-29644-17ovr64
2019-09-05 15:00:25.425 xcodebuild[36284:478227] [MT] IDEDistribution: -[IDEDistributionLogging _createLoggingBundleAtPath:]: Created bundle at path '/var/folders/qz/6s9891695732y411dq855h6c0000gn/T/317huPad_2019-09-05_15-00-25.424.xcdistributionlogs'.
error: exportArchive: No profiles for 'com.bozhong.317huIpad' were found

Error Domain=IDEProfileLocatorErrorDomain Code=1 "No profiles for 'com.bozhong.317huIpad' were found" UserInfo={NSLocalizedDescription=No profiles for 'com.bozhong.317huIpad' were found, NSLocalizedRecoverySuggestion=Xcode couldn't find any iOS App Store provisioning profiles matching 'com.bozhong.317huIpad'. Automatic signing is disabled and unable to generate a profile. To enable automatic signing, pass -allowProvisioningUpdates to xcodebuild.}

** EXPORT FAILED **
[15:00:27]: Exit status: 70

PS：如果安装的是ruby问题建议先把ruby卸载了重新安装，我的就是，卸载重装很快就好了，不过如果你装好了，不要修改ruby的默认版本fastlane装在ruby默认版本下，修改后会找不到fastlane。