layoutCache[currentClass] = ivar

FBRetainCycleDetector编译报错：Cannot initialize a parameter of type 'id<NSCopying> _Nonnull' with an rvalue of type 'Class'

解决方法：

在Podfile的末尾添加这个：

post_install do|installer|  find_and_replace("Pods/FBRetainCycleDetector/FBRetainCycleDetector/Layout/Classes/FBClassStrongLayout.mm", "layoutCache[currentClass] = ivars;", "layoutCache[(id)currentClass] = ivars;")

end

deffind_and_replace(dir, findstr, replacestr)

  Dir[dir].eachdo|name|

    FileUtils.chmod("+w",name)#add

      text = File.read(name)

      replace = text.gsub(findstr,replacestr)

      iftext != replace

          puts"Fix: "+ name

          File.open(name,"w") { |file| file.puts replace }

          STDOUT.flush

      end

  end

  Dir[dir +'*/'].each(&method(:find_and_replace))

end

再重新pod install