Flutter 如何解决颤振安装时的Cocoapods错误？

当我运行Flatter doctor时，要求安装CoCoapod时发生了一个错误。然后我尝试安装cocoapods，并给出了blow错误。请帮我解决这个错误

thejanisaranaguptha@Thejanis-MacBook-Pro ~ % sudo gem install cocoapods
Building native extensions. This could take a while...
ERROR:  Error installing cocoapods:
    ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2/ext/ffi_c
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby -I /Library/Ruby/Site/2.6.0 -r ./siteconf20210306-2856-1tbjsvn.rb extconf.rb
checking for ffi.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:467:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:585:in `block in try_compile'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:534:in `with_werror'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:585:in `try_compile'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:1109:in `block in have_header'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:959:in `block in checking_for'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:361:in `block (2 levels) in postpone'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:331:in `open'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:361:in `block in postpone'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:331:in `open'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:357:in `postpone'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:958:in `checking_for'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:1108:in `have_header'
    from extconf.rb:10:in `system_libffi_usable?'
    from extconf.rb:42:in `<main>'

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/ffi-1.14.2/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2 for inspection.
Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/ffi-1.14.2/gem_make.out

thejanisaranaguptha@Thejanis-MacBook Pro~%sudo gem安装cocoapods
构建本机扩展。这可能需要一段时间。。。
错误：安装CoCoapod时出错：
错误：无法生成gem本机扩展。
当前目录：/Library/Ruby/Gems/2.6.0/Gems/ffi-1.14.2/ext/ffi\u c
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/Ruby-I/Library/Ruby/Site/2.6.0-r./siteconf20210306-2856-1tbjsvn.rb extconf.rb
正在检查ffi.h.。**extconf.rb失败***
由于某些原因无法创建Makefile，可能缺少必要的
库和/或标题。有关详细信息，请查看mkmf.log文件。你可以
需要配置选项。
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:467:在“try_do”中：编译器未能生成可执行文件。（运行时错误）
您必须首先安装开发工具。
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:585:in'block in try_compile'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:534:in'with_werror'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:585:in'try_compile'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:1109:in'block in have_header'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:959:in'block in checking_'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:361:in'block（2层）in
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:331:in'open'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:361:in'block in delay'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:331:in'open'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:357:in“推迟”
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:958:in'checking_'
from/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/Ruby/2.6.0/mkmf.rb:1108:in'have_header'
来自extconf.rb:10:in‘system_libffi_usable？’
来自extconf.rb:42:in`'
要了解此扩展未能编译的原因，请检查mkmf.log，该日志可在此处找到：
/Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/ffi-1.14.2/mkmf.log
extconf失败，退出代码1
Gem文件仍将安装在/Library/Ruby/Gems/2.6.0/Gems/ffi-1.14.2中供检查。
结果记录到/Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/ffi-1.14.2/gem_make.out

如果已安装自制软件，请尝试此操作

brew install cocoapods