ios – Flutter Siri Suggestion makes Firebase DynamicLinks insert nil worth to trigger app crashed

I’ve been discovering resolution for a very long time…

Just lately, I discovered that [Flutter Siri Suggestion]package deal will make [Firebase DynamicLink] insert nil worth and trigger my app crashed!

However I am completely new to Swift and do not know alter this code, Can anybody assist me to repair this drawback?

Thanks very a lot!!

NSMutableDictionary *dict = [@{ @"title": userActivity.title, @"key" : [userActivity.activityType stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@"%@-", kPluginName] withString:@""] } mutableCopy];

I must keep away from inserting nil worth to “key”, or there will likely be error!