找不到NSManagedObject.h文件错误

Question

我的SignupInfo.h

#import <Foundation/Foundation.h>
#import <CoreData/CoreData.h>

@class NSManagedObject;

@interface SignupInfo : NSManagedObject

@property (nonatomic, retain) NSString * firstName;
@property (nonatomic, retain) NSString * lastName;
@property (nonatomic, retain) NSString * sex;
@property (nonatomic, retain) NSString * email;
@property (nonatomic, retain) NSNumber * zipcode;
@property (nonatomic, retain) NSString * password;
@property (nonatomic, retain) NSString * retypepassword;


@end

我的SignupInfo.m

#import "SignupInfo.h"
#import "NSManagedObject.h"


@implementation SignupInfo

@dynamic firstName;
@dynamic lastName;
@dynamic sex;
@dynamic email;
@dynamic zipcode;
@dynamic password;
@dynamic retypepassword;

@end

我收到构建错误说 NSManagedObject.h file not found

我正在使用SignupInfo的核心数据模型

Answer 1

NSManagedObject在.h文件中定义,包含在.h文件中<CoreData/CoreData.h>.因此,您不需要声明它,也不需要#import语句.