Flutter iOS项目执行pod install遇Firebase/Firestore版本兼容问题

未修改任何依赖的情况下，我的Flutter iOS项目执行pod install时出现Firebase/Firestore版本兼容问题，具体报错如下：

[!] CocoaPods could not find compatible versions for pod "Firebase/Firestore":
  In snapshot (Podfile.lock):
    Firebase/Firestore (= 10.15.0)

  In Podfile:
    cloud_firestore (from .symlinks/plugins/cloud_firestore/ios) was resolved to 4.13.3, which depends on
      Firebase/Firestore (= 10.18.0)

Specs satisfying the Firebase/Firestore (= 10.15.0), Firebase/Firestore (= 10.18.0) dependency were found, but they required a higher minimum deployment target.

[!] Automatically assigning platform iOS with version 12.0 on target Runner because no platform was specified. Please specify a platform for this target in your Podfile. See https://guides.cocoapods.org/syntax/podfile.html#platform

我已经尝试了以下操作，但问题仍未解决：

• pod install
• pod update
• pod repo update
• flutter clean
• flutter pub get

此外我还升级了Flutter及所有依赖包，并且重新创建了Podfile和Podfile.lock文件，依然无法解决问题。有没有人遇到过相同的问题？

内容的提问来源于stack exchange，提问作者BeNdos88