cocoapods LoadError - incompatib

记录下遇到的问题，运行flutter项目出现以下错误

    LoadError - incompatible library version -
    /Users/zack/.rvm/gems/ruby-3.0.0/gems/ffi-1.15.0/lib/ffi_c.bundle
    <internal:/usr/local/lib/ruby/site_ruby/3.0.0/rubygems/core_ext/kernel_requi
    re.rb>:85:in `require'
    <internal:/usr/local/lib/ruby/site_ruby/3.0.0/rubygems/core_ext/kernel_requi
    re.rb>:85:in `require'
    /Users/zack/.rvm/gems/ruby-3.0.0/gems/ffi-1.15.0/lib/ffi.rb:6:in `rescue in
    <top (required)>'
    /Users/zack/.rvm/gems/ruby-3.0.0/gems/ffi-1.15.0/lib/ffi.rb:3:in `<top
    (required)>'
blablabla

从第一句可判断是 ffi 除了问题

$ gem install ffi

then，

$ flutter run

later,

Cloning into
    '/var/folders/rb/~/T/d20210817-6359-mthhmc'...
    fatal: unable to access 'https://github.com/scalessec/Toast.git/': LibreSSL
    SSL_connect: SSL_ERROR_SYSCALL in connection to github.com:443

很明显，

git config --global --add remote.origin.proxy ""

then,

flutter run 

涛声依旧，

再次尝试，

git config --global http.sslBackend "openssl"

git config --global --add remote.origin.proxy ""

then,

flutter run

bingo