工程不认识xcframework.
需要将pod升级到1.10.0及其以上的版本，pod新版本才支持xcframework
检查pod版本
jgs:~ mac$ pod --version
1.8.4
具体解决方案：
- 替换ruby源
jgs:~ mac$ gem sources --remove https://gems.ruby-china.org/
source https://gems.ruby-china.org/ not present in cache
jgs:~ mac$ gem source -a https://gems.ruby-china.com
source https://gems.ruby-china.com already present in the cache
jgs:~ mac$ gem sources -l
*** CURRENT SOURCES ***
https://gems.ruby-china.com/
https://rubygems.org/
2.保证只有一个ruby源，淘宝的源已经不更新维护了，现在使用ruby-china的源。多余的要移除：
jgs:~ mac$ gem sources --remove https://rubygems.org/
https://rubygems.org/ removed from sources
jgs:~ mac$ gem sources -l
*** CURRENT SOURCES ***
https://gems.ruby-china.com/
3.验证是否替换成功：
gem sources -l
jgs:~ mac$ gem sources -l
*** CURRENT SOURCES ***
https://gems.ruby-china.com/
- 更新升级 Gem 版本
更新升级gem，gem不更新可能导致安装pod失败
sudo gem update --system
查看gem版本
gem -v
jgs:~ mac$ sudo gem update --system
Password:
Latest version already installed. Done.
jgs:~ mac$ gem -v
3.0.3
- 安装CocoaPods
如果mac系统为OS X 10.11 以前安装命令为：
sudo gem install cocoapods // 安装cocoapods
Mac系统为OS X EL Capitan安装命令为：
sudo gem install -n /usr/local/bin cocoapods
jgs:~ mac$ sudo gem install -n /usr/local/bin cocoapods
Fetching activesupport-5.2.6.gem
Fetching ethon-0.14.0.gem
Fetching public_suffix-4.0.6.gem
Fetching ffi-1.15.3.gem
Fetching addressable-2.8.0.gem
Fetching cocoapods-core-1.10.1.gem
Fetching typhoeus-1.4.0.gem
Fetching cocoapods-downloader-1.4.0.gem
Fetching nanaimo-0.3.0.gem
Fetching rexml-3.2.5.gem
Fetching xcodeproj-1.20.0.gem
Fetching cocoapods-1.10.1.gem
Successfully installed activesupport-5.2.6
Building native extensions. This could take a while...
Successfully installed ffi-1.15.3
Successfully installed ethon-0.14.0
Successfully installed typhoeus-1.4.0
Successfully installed public_suffix-4.0.6
Successfully installed addressable-2.8.0
Successfully installed cocoapods-core-1.10.1
Successfully installed cocoapods-downloader-1.4.0
Successfully installed nanaimo-0.3.0
Successfully installed rexml-3.2.5
Successfully installed xcodeproj-1.20.0
Successfully installed cocoapods-1.10.1
Parsing documentation for activesupport-5.2.6
Installing ri documentation for activesupport-5.2.6
Parsing documentation for ffi-1.15.3
Installing ri documentation for ffi-1.15.3
Parsing documentation for ethon-0.14.0
Installing ri documentation for ethon-0.14.0
Parsing documentation for typhoeus-1.4.0
Installing ri documentation for typhoeus-1.4.0
Parsing documentation for public_suffix-4.0.6
Installing ri documentation for public_suffix-4.0.6
Parsing documentation for addressable-2.8.0
Installing ri documentation for addressable-2.8.0
Parsing documentation for cocoapods-core-1.10.1
Installing ri documentation for cocoapods-core-1.10.1
Parsing documentation for cocoapods-downloader-1.4.0
Installing ri documentation for cocoapods-downloader-1.4.0
Parsing documentation for nanaimo-0.3.0
Installing ri documentation for nanaimo-0.3.0
Parsing documentation for rexml-3.2.5
Installing ri documentation for rexml-3.2.5
Parsing documentation for xcodeproj-1.20.0
Installing ri documentation for xcodeproj-1.20.0
Parsing documentation for cocoapods-1.10.1
Installing ri documentation for cocoapods-1.10.1
Done installing documentation for activesupport, ffi, ethon, typhoeus, public_suffix, addressable, cocoapods-core, cocoapods-downloader, nanaimo, rexml, xcodeproj, cocoapods after 43 seconds
12 gems installed
6.等待其安装成功，用命令pod --version查看是否安装成功，如果成功会显示pod的版本。
jgs:~ mac$ pod --version
1.10.1
7.更新原来的工程，然后工程就能支持xcframework了，能运行工程成功了。
jgs:LChat mac$ pod update --verbose --no-repo-update