My Flutter应用程序与Firebase集成，该应用程序使用Firebase核心和auth成功构建。然而，当我添加cloud_firestore: ^2.2.0依赖项时，构建在iOS上失败(在Android上仍然有效(，并显示以下错误消息：
In file included from /Users/charismak/AndroidStudioProjects/foodstack/ios/Pods/gRPC-Core/src/core/ext/filters/client_channel/xds/xds_channel_secure.cc:34:
In file included from /Users/charismak/AndroidStudioProjects/foodstack/ios/Pods/gRPC-Core/src/core/lib/security/credentials/credentials.h:35:
In file included from /Users/charismak/AndroidStudioProjects/foodstack/ios/Pods/gRPC-Core/src/core/lib/security/security_connector/security_connector.h:33:
/Users/charismak/AndroidStudioProjects/foodstack/ios/Pods/gRPC-Core/src/core/tsi/ssl_transport_security.h:28:10: fatal error: 'openssl/x509.h' file not found
#include <openssl/x509.h>
^~~~~~~~~~~~~~~~
1 error generated.
当我删除依赖项时，它会成功构建。
我尝试过运行pod install、flutter clean，更改Xcode和podfile上的部署目标，以及安装/升级openssl。
与此问题相同：未找到'；openssl/x509.h'；什么时候安装cloud_firesore flutter？
我通过在<您的项目路径>ios:
rm -rf Pods Podfile.lock
pod cache clean --all
pod install
(安装可能需要一些时间才能完成(
来源：https://github.com/FirebaseExtended/flutterfire/issues/3203#issuecomment-743789416