如何解决初始化React Native 0.63项目时的‘Could not locate Gemfile’错误？

执行命令 npx react-native init myProject --version 0.63.0 时触发以下错误：

✖ Installing Bundler
error Could not locate Gemfile

限制条件：Mac OS 10.13.6，无法升级系统或安装Xcode 12，只能使用RN 0.63版本，已完成官方环境配置步骤。

解决方法 #

方法1：手动生成Gemfile并补装依赖 #

1. 进入未完成初始化的项目目录：cd myProject
2. 创建Gemfile文件，粘贴以下内容：

source 'https://rubygems.org'
gem 'bundler'
gem 'cocoapods', '~> 1.10.1' # 匹配当前已安装的pod版本

3. 执行Bundler安装：bundle install
4. 补全项目初始化：执行 npm install 后再运行 cd ios && pod install && cd ..

方法2：跳过自动安装，手动完成初始化 #

1. 执行初始化时跳过自动依赖安装：
   npx react-native init myProject --version 0.63.0 --skip-install
2. 进入项目目录：cd myProject
3. 安装RN 0.63兼容的Bundler版本：gem install bundler:2.2.33
4. 安装npm依赖：npm install
5. 安装iOS pod依赖：cd ios && pod install && cd ..

方法3：修复RVM环境变量 #

从提供的环境信息看，RVM路径已配置，但确保当前终端会话正确加载RVM：

1. 执行命令切换到指定Ruby版本：rvm use ruby-2.7.4 --default
2. 关闭并重新打开终端，再执行初始化命令

环境验证信息 #

$ ruby --version
ruby 2.7.4p191 (2021-07-07 revision a21a3b7d23) [x86_64-darwin17]
$ rvm --version
rvm 1.29.12 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io]
$ gem --version
3.1.6
$ pod --version
1.10.1

gem env输出详情 #

RubyGems Environment:
  - RUBYGEMS VERSION: 3.1.6
  - RUBY VERSION: 2.7.4 (2021-07-07 patchlevel 191) [x86_64-darwin17]
  - INSTALLATION DIRECTORY: /Users/toast/.rvm/gems/ruby-2.7.4
  - USER INSTALLATION DIRECTORY: /Users/toast/.gem/ruby/2.7.0
  - RUBY EXECUTABLE: /Users/toast/.rvm/rubies/ruby-2.7.4/bin/ruby
  - GIT EXECUTABLE: /usr/local/bin/git
  - EXECUTABLE DIRECTORY: /Users/toast/.rvm/gems/ruby-2.7.4/bin
  - SPEC CACHE DIRECTORY: /Users/toast/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /Users/toast/.rvm/rubies/ruby-2.7.4/etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-darwin-17
  - GEM PATHS:
     - /Users/toast/.rvm/gems/ruby-2.7.4
     - /Users/toast/.rvm/rubies/ruby-2.7.4/lib/ruby/gems/2.7.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /Users/toast/.rvm/gems/ruby-2.7.4/bin
     - /Users/toast/.rvm/gems/ruby-2.7.4@global/bin
     - /Users/toast/.rvm/rubies/ruby-2.7.4/bin
     - Users/toast/bin/dafny
     - /usr/local/share/dotnet/dotnet
     - /Users/toast/.cargo/bin
     - /Library/Frameworks/Python.framework/Versions/3.7/bin
     - /Library/Frameworks/Python.framework/Versions/3.8/bin
     - /Library/Frameworks/Python.framework/Versions/3.7/bin
     - /opt/local/bin
     - /opt/local/sbin
     - /usr/local/bin
     - /usr/bin
     - /bin
     - /usr/sbin
     - /sbin
     - /Users/toast/.rvm/bin

内容的提问来源于stack exchange，提问作者jfog