在构建ios版时flutter_inappwebview出现问题

[shusheng-l]

错误信息如下：
Swift Compiler Error (Xcode): Cannot call value of non-function type 'String?'
/Users/ljc/.pub-cache/hosted/pub.dev/flutter_inappwebview-5.7.2+2/ios/Classes/My
CookieManager.swift:259:43

Swift Compiler Error (Xcode): Cannot call value of non-function type 'String?'
/Users/ljc/.pub-cache/hosted/pub.dev/flutter_inappwebview-5.7.2+2/ios/Classes/My
CookieManager.swift:293:43

请问这个问题需要怎么解决呢 感谢感谢感谢！