报错：Library not loaded libssl.1.0.0.dylib

Macos 系统升级到 Catalina 后，pod install, 提示如下错误：dyld: Library not loaded: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib

搜索当前系统安装的版本: ls /usr/local/Cellar/openssl@1.1 brew switch openssl 1.1.1g 提示:

1Error: openssl does not have a version "1.1.1g" in the Cellar.
2openssl's installed versions: 1.0.2s

所以，运行 brew switch openssl 1.0.2s 即可。