iosswiftxcodeflutter-getxflutter-ios-build

Swift Compiler Error when build ios app on Xcode

Firstly, I was using xcode version 13.2.1 and I have a problem when trying to build my ios App in terminal / xcode, here is the error response :

enter image description here

/Users/user/.pubcache/hosted/pub.dev/shared_preferences_foundation-2.3.0/ios/Classes/SharedPreferencesPlugin.swift:58:22: Variable binding in a condition requires an initializer

and here is the full function that get error :

func getAllPrefs(prefix: String, allowList: [String]?) -> [String: Any] {
    var filteredPrefs: [String: Any] = [:]
    var allowSet: Set<String>?;
    if let allowList {
      allowSet = Set(allowList)
    }
    if let appDomain = Bundle.main.bundleIdentifier,
      let prefs = UserDefaults.standard.persistentDomain(forName: appDomain)
    {
      for (key, value) in prefs where (key.hasPrefix(prefix) && (allowSet == nil || allowSet!.contains(key))) {
        filteredPrefs[key] = value
      }
    }
    return filteredPrefs
  }

and the error comes from this specific function :

    if let allowList {
      allowSet = Set(allowList)
    }

I never use if let function, so I don't know how to solve this swift error. Can someone tell me how can I solved this?

Solution

  • Apparently this has been fixed in newer versions of swift but here I would replace the if with

    allowSet = allowList == nil ? [] : Set(allowList!)

    or perhaps even better

    var allowSet = Set<String>()

if allowList != nil {
    Set(allowList!)
}

    and a third option :)

    var allowSet = allowList == nil ? Set<String>() : Set(allowList!)