我在iOS应用程序中使用AmazonCognito和Facebook登录。直到beta5此代码fromthisSOthread工作:classCustomIdentityProvider:NSObject,AWSIdentityProviderManager{vartokens:[NSString:NSString]?init(tokens:[NSString:NSString]){self.tokens=tokens}@objcfunclogins()->AWSTask{returnAWSTask(result:tokens)//Compileerrorinbeta6}}在beta6