参考：https://blog.csdn.net/watson2017/article/details/109114524
错误一：
ld: in /var/folders/hg/f9t0ymfj3gg9tk2j1dr23j400000gn/T/CocoaPods-Lint-20210122-94670-1do7n6-xxxx, building for iOS Simulator, but linking in object file built for iOS, file '/var/folders/hg/f9t0ymfj3gg9tk2j1dr23j400000gn/T/CocoaPods-Lint-20210122-94670-1do7n6-xxx' for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
在 私有库podspec 文件中添加s.pod_target_xcconfig = { 'VALID_ARCHS' => 'x86_64 armv7 arm64' }
错误二：
xxx did not pass validation, due to 5 warnings (but you can use `--allow-warnings` to ignore them).
使用pod lib lint --allow-warnings(忽略警告)
错误三：
[iOS] unknown: Encountered an unknown error (Unable to find a specification for `xxx` to `xxx`
pod spec lint --verbose --allow-warnings --sources='git@私有库地址.git,https://github.com/CocoaPods/Specs.git'
使用：
添加私有库名: pod repo add 自定义私有库名 xxx仓库地址
pod repo push 私有索引库名 xxx.podspec --allow-warnings将podspec添加到本地私有索引库, 然后自动push到远程索引库。
