问题说明：工程引用了外部类库， 默认生成的archive是 Generic Xcode Archive 格式的 无法发布和生成ipa文件、
解决处理：
1、将Build Settings->Deployment->Skip Install 设置为 YES，但项目的Skip Install却要保持为NO。
2、将Build Phases->Copy Headers中的所有头文件拉到Project下，即Public和Private下不能有文件。
3、清空Build Settings->Deployment->Installation Directory选项的内容。
处理深究：
官方说明：https://developer.apple.com/library/ios/technotes/tn2215/_index.html
1. 说明：
Skip Install : Boolean value. Specifies whether to place the product at the location indicated by DSTROOT or the uninstalled products directory inside the directory indicated by TARGET_TEMP_DIR
把app放置到DSTROOT 或卸载APP目录在TARGET_TEMP_DIR
YES: When$DEPLOYMENT_LOCATION = YES, the product is placed in$TARGET_TEMP_DIR/UninstalledProducts.NO: The product is placed in$DSTROOT.
TARGET_TEMP_DIR：Directory path. Identifies the directory containing the target’s intermediate build files.Run Script build phases should place intermediate files at the location indicated by DERIVED_FILE_DIR, not the directory identified by this build setting.
DSTROOT : the distribution root
SRCROOT：the source root
SYMROOT：the build root
猜测：项目生成时，会有相应的位置，只有主target有位置，其他为跳过
2.推测：生成app时，复制文件，需要文件存在project下
3.推测：跳过的target 安装目录清空