RealmSwift 注册时候崩溃malloc_ptr classes(objc_copyClassList(&numClasses), &free);

调用sharedSchema就崩溃，官方目前最新版本没修复，目前手动解决方案：配置的时候添加objectTypes

let config = Realm.Configuration(fileURL: URL(string: fileURL), schemaVersion: schemaVersion,migrationBlock: { (migration, oldSchemaVersion) in

if oldSchemaVersion < 1 {

 //TODO

}

if migrationBlock != nil {

migrationBlock!(migration, oldSchemaVersion)

}

}, objectTypes: [GoodsItermModel_db.self])