Flutter m1칩 pod 에러

flutter로 작성한 앱을 아이폰 에뮬레이터에서 구동하려고 하니, 다음과 같은 에러가 발생.

Launching lib/main.dart on iPhone 13 in debug mode...
lib/main.dart:1
CocoaPods' output:
↳
      Preparing
    Analyzing dependencies
    Inspecting targets to integrate
      Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)
    Fetching external sources
    -> Fetching podspec for `Flutter` from `Flutter`
    -> Fetching podspec for `webview_flutter_wkwebview` from `.symlinks/plugins/webview_flutter_wkwebview/ios`
    Resolving dependencies of `Podfile`
Error output from CocoaPods:
↳
    /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require': dlopen(/Library/Ruby/Gems/2.6.0/gems/ffi-1.15.4/lib/ffi_c.bundle, 9): no suitable image found.  Did find: (LoadError)
    	/Library/Ruby/Gems/2.6.0/gems/ffi-1.15.4/lib/ffi_c.bundle: mach-o, but wrong architecture
    	/Library/Ruby/Gems/2.6.0/gems/ffi-1.15.4/lib/ffi_c.bundle: mach-o, but wrong architecture - /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.4/lib/ffi_c.bundle

터미널에서 ~/ios/ 이동 후 pod install 실행 시 역시나 에러 발생

changho@177802-RedmiBook-Air ios % pod install
Analyzing dependencies
/Library/Ruby/Gems/2.6.0/gems/ffi-1.15.4/lib/ffi/library.rb:275: [BUG] Bus Error at 0x00000001022f4000
ruby 2.6.3p62 (2019-04-16 revision 67580) [universal.arm64e-darwin20]

-- 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.     

인텔칩이 아닌 m1칩 관련 문제

다음 명령어로 gem 설치

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

조치 후 에러 없이 정상작동함.