我是做coreData编程的新手,我按照教程一步一步做,当我遇到这个错误并被卡住时,不知道这是什么意思
entityName.state must have a defined type
entityName.zip must have defined type
我是做coreData编程的新手,我按照教程一步一步做,当我遇到这个错误并被卡住时,不知道这是什么意思
entityName.state must have a defined type
entityName.zip must have defined type