【发布时间】：2016-06-24 19:36:21
【问题描述】：
我正在尝试编译一个用 swift 编写的现有 xcode 项目。该项目使用 Alamofire。我安装了 xcode 8 beta 并打开了项目。 Alamofire 有很多错误，我了解到需要更新到版本 3.2.1。
我编辑了我的 Podfile 并修复了版本号，然后运行 pod update alamofire。不仅更新了 Alomfire，还更新了每个 pod。这显然是一个错误。
Podfile 包含指令 use_frameworks！更新 pod 后，pods/headers 目录完全为空，没有 Public 或 Private 目录，项目构建失败，出现 356 个丢失文件错误。
根据https://github.com/CocoaPods/CocoaPods/issues/4605#issuecomment-208822149 此处的建议将 ALWAYS_SEARCH_USER_PATHS 的构建搜索设置更改为 no（或 yes），然后删除 pod 并再次运行 pod install 没有任何效果。
stackoverflow 上有许多不同的问题，问同一个问题却没有答案。这是我能找到的列表。
Pods/Headers empty after pod install
Empty Pod Headers Folder after `pod install`
After pod install Public folder is empty
来自 Pods-Myproject.debug.xconfig
EMBEDDED_CONTENT_CONTAINS_SWIFT = YES
FRAMEWORK_SEARCH_PATHS = $(inherited) "$PODS_CONFIGURATION_BUILD_DIR/AFNetworking" "$PODS_CONFIGURATION_BUILD_DIR/Alamofire" "$PODS_CONFIGURATION_BUILD_DIR/Bolts-iOS8.0" "$PODS_CONFIGURATION_BUILD_DIR/CocoaLumberjack" "$PODS_CONFIGURATION_BUILD_DIR/DBAlertController-iOS8.0" "$PODS_CONFIGURATION_BUILD_DIR/FBSDKCoreKit-iOS8.0" "$PODS_CONFIGURATION_BUILD_DIR/FBSDKLoginKit-iOS8.0" "$PODS_CONFIGURATION_BUILD_DIR/ISO8601DateFormatterValueTransformer" "$PODS_CONFIGURATION_BUILD_DIR/MBProgressHUD" "$PODS_CONFIGURATION_BUILD_DIR/RESideMenu-iOS8.0" "$PODS_CONFIGURATION_BUILD_DIR/RKValueTransformers" "$PODS_CONFIGURATION_BUILD_DIR/RestKit" "$PODS_CONFIGURATION_BUILD_DIR/SOCKit" "$PODS_CONFIGURATION_BUILD_DIR/TransitionKit" "$PODS_CONFIGURATION_BUILD_DIR/iCarousel-iOS8.0" "${PODS_ROOT}/Crashlytics/iOS" "${PODS_ROOT}/Fabric/iOS"
GCC_PREPROCESSOR_DEFINITIONS = $(inherited) COCOAPODS=1
HEADER_SEARCH_PATHS = $(inherited) "${PODS_ROOT}/Headers/Public" "${PODS_ROOT}/Headers/Public/Crashlytics" "${PODS_ROOT}/Headers/Public/Fabric"
LD_RUNPATH_SEARCH_PATHS = $(inherited) '@executable_path/Frameworks' '@loader_path/Frameworks'
OTHER_CFLAGS = $(inherited) -iquote "$PODS_CONFIGURATION_BUILD_DIR/AFNetworking/AFNetworking.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/Alamofire/Alamofire.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/Bolts-iOS8.0/Bolts.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/CocoaLumberjack/CocoaLumberjack.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/DBAlertController-iOS8.0/DBAlertController.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/FBSDKCoreKit-iOS8.0/FBSDKCoreKit.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/FBSDKLoginKit-iOS8.0/FBSDKLoginKit.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/ISO8601DateFormatterValueTransformer/ISO8601DateFormatterValueTransformer.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/MBProgressHUD/MBProgressHUD.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/RESideMenu-iOS8.0/RESideMenu.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/RKValueTransformers/RKValueTransformers.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/RestKit/RestKit.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/SOCKit/SOCKit.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/TransitionKit/TransitionKit.framework/Headers" -iquote "$PODS_CONFIGURATION_BUILD_DIR/iCarousel-iOS8.0/iCarousel.framework/Headers" -isystem "${PODS_ROOT}/Headers/Public" -isystem "${PODS_ROOT}/Headers/Public/Crashlytics" -isystem "${PODS_ROOT}/Headers/Public/Fabric"
OTHER_LDFLAGS = $(inherited) -ObjC -l"c++" -l"z" -framework "AFNetworking" -framework "Alamofire" -framework "Bolts" -framework "CocoaLumberjack" -framework "Crashlytics" -framework "DBAlertController" -framework "FBSDKCoreKit" -framework "FBSDKLoginKit" -framework "Fabric" -framework "ISO8601DateFormatterValueTransformer" -framework "MBProgressHUD" -framework "RESideMenu" -framework "RKValueTransformers" -framework "RestKit" -framework "SOCKit" -framework "Security" -framework "SystemConfiguration" -framework "TransitionKit" -framework "UIKit" -framework "iCarousel"
OTHER_SWIFT_FLAGS = $(inherited) "-D" "COCOAPODS"
PODS_BUILD_DIR = $BUILD_DIR
PODS_CONFIGURATION_BUILD_DIR = $PODS_BUILD_DIR/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)
PODS_ROOT = ${SRCROOT}/Pods
我真的需要找到解决这个问题的方法，所以如果有人能回答这个问题，我将不胜感激。
【问题讨论】：