Cocoapods 中没有可见的@interface

No visible @interface in Cocoapods

我正在尝试通过将我的应用拆分为不同的子项目来对其进行模块化。 受到 this idea. So I splited my project to static libraries followed by that tutorial. I created a first library with some costume UIHelpers/Views. It has some dependencies which I defined in PodSpec file followed by AFNetworking example. (one of the dependencies is Choosy). I stored this library in bitBucket. Everything is working fine for that library(I can build it in Xcode). The problem start when I create a Model Library. I specify Git path of UIHelpers in the Model PodFile. Every time I get an error of No visible @interface for a category in Choosy (the error come from CocoaPod NOT in my project, the category is imported in the .mfile). I tried to play with link flags -ObjC,$(inhereted),-force_load included all of them.Objective-C categories in static library 的启发,我清理了派生数据。 我读了 CocoaPodTroubleShoutes.

有人可以建议可以尝试什么。关于那个编译错误有很多问题,但 none 帮助了我。 我相信问题出在我的 PodSpec(不能确定)pod lib linit 我收到:
- ERROR | [iOS] Choosy/Choosy/Model/ChoosyAppInfo.m:32:19: error: no visible @interface for 'UIImage' declares the selector 'applyMaskImage:completion:'
我的 PodSec:

Pod::Spec.new do |s|
    #I tried this options:
    #s.xcconfig = { 'OTHER_LDFLAGS' => $(inherited) }
    #s.compiler_flags = '-ObjC'
    #'-all_load'
    #$(inherited)
    #'-DOS_OBJECT_USE_OBJC=0', '-Wno-format'
    #'-force_load'

   s.prefix_header_contents = '#import <UIKit/UIKit.h>', '#import <Foundation/Foundation.h>','#import <CoreGraphics/CoreGraphics.h>','#import "ARNStyles.h"'
   s.description  = <<-DESC
               A longer description of ARNUIHelpers in Markdown format.
               DESC
   s.homepage     = "http://EXAMPLE/ARNUIHelpers"
   s.platform     = :ios, "7.0"
   s.ios.deployment_target = "7.0"
   s.source_files  = 'UIHelpers/**/*.{h,m}' 
   s.requires_arc = true

   s.subspec 'Choosy' do |ss|
         ss.requires_arc = true
         ss.compiler_flags = '-force_load'
         ss.platform     = :ios, "7.0"
         ss.dependency 'Choosy'
       # ss.xcconfig = { "FRAMEWORK_SEARCH_PATHS" =>      "$(PODS_ROOT)/Headers/Public/Choosy"}
        # ss.ios.public_header_files = 'UIImage+ImageEffects.h'
   end

   s.subspec 'Dependencies' do |ss|
        #ss.ios.public_header_files = 'UIImage+ImageEffects.h'
         ss.requires_arc = true 
         ss.dependency 'FormatterKit'
   end
end

最后都是我的错。以前的开发人员从 Choosy pod 复制了这些文件并包含它 manually.We 在其他地方仍然使用 Choosy。不幸的是,错误不够清楚,无法推断出问题所在。