找不到-lGTMSessionFetcher的库

Unity 5.6.2，Firebase Unity SDK 4.0.3，Cocoapod 1.3.1我将Firebase Auth软件包添加到Unity Project，Android工作正常。 但是当我在iOs上运行相同的项目时，在Unity中编译运行正常，但在编译期间在XCode中失败

ld: library not found for -lGTMSessionFetcher clang: error: linker command failed with exit code 1 

任何想法如何解决它？

我尝试添加Firebase身份validation表单Unity SDK 4.1.0，但由于以下原因，Unity开始失败：

 iOS framework addition failed due to a Cocoapods installation failure. Specs satisfying the 'Firebase/DynamicLinks (=4.0.4)' dependency were found, but they required a higher minimum deployment target 

pod spec catdynamic链接输出

 "platforms": { "ios": "7.0" } 

我的Unity项目有9.0