macOS Big sur pod install失败

macOS Big sur系统上运行pod install命令行报错：

See Crash Report log file under the one of following:                    
     * ~/Library/Logs/DiagnosticReports                                     
     * /Library/Logs/DiagnosticReports                                      
   for more details.

-- Crash Report log information --------------------------------------------

See Crash Report log file under the one of following:

 * ~/Library/Logs/DiagnosticReports                                     

 * /Library/Logs/DiagnosticReports                                      

for more details.

Don't forget to include the above Crash Report log file in bug reports.

经过搜索多种方案，最终找到以下解决办法：

命令行中执行以下命令行即可

sudo arch -x86_64 gem install ffi
arch -x86_64 pod install

原因可能是Ruby的FFI库是一个gem，用于以编程方式加载动态链接的本地库，在其中绑定函数，并从 Ruby 代码调用这些函数。（原文：Ruby-FFI is a gem for programmatically loading dynamically-linked native libraries, binding functions within them, and calling those functions from Ruby code.）
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