Failed to build module 'xxx'; this SDK is not supported by the compiler (the SDK is built with 'Apple Swift version 5.5 effective-4.2 (swiftlang-1300.0.31.1 clang-1300.0.29.1)', while this compiler is 'Apple Swift version 5.5.2 effective-4.2 (swiftlang-1300.0.47.5 clang-1300.0.29.30)'). Please select a toolchain which matches the SDK.
在build setting中将BUILD_LIBRARY_FOR_DISTRIBUTION设置为Yes
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Include of non-modular header inside framework module
该问题发生场景为：依赖第三方framework，且项目中只能看到framework，头文件必须在Finder中才能看到。
解决：如果能看到头文件，在build perhaps->Headers中将头文件放到public中。如果看不到，需要在build setting->OTHER_SWIFT_FLAGS中添加-Xcc -Wno-error=non-modular-include-in-framework-module
3.SDK依赖第三方库，在导入SDK后pod对应库后编译出现Undefined symbols
解决：找到对应三方库的TARGETS -> Build Settings -> BUILD_LIBRARY_FOR_DISTRIBUTION 设置为YES
Sandbox: rsync.samba(13741) deny(1) file-write-create
TARGETS -> Build Settings -> ENABLE_USER_SCRIPT_SANDBOXING -> No
5.导入C或者OC的头文件报错
第一种，将header文件在Build Phases -> Headers中设置为Public，然后在xxx.h(如framework叫abc，会有一个abc.h)import。
可能会遇到的错误：
double-quoted include "xxx.h" in framework header, expected angle-bracketed instead
解决：将#import "xxx.h" 改为 #import <framework的名字/xxx.h> ，在c或oc文件中报这个错误也用相同方式解决(include)
第二种，modulemap
暂未遇到问题
