257使用iOS将视频上载到Firebase时出错

我正在尝试使用iOS将视频上载到firebase，尝试从模拟器上载时，视频正在上载，但尝试从设备上载时，出现以下错误：

 Cannot get file size: Error Domain=NSCocoaErrorDomain Code=257 "The file “IMG_1179.MOV” couldn’t be opened because you don’t have permission to view it." UserInfo={NSURL=file:///var/mobile/Media/DCIM/101APPLE/IMG_1179.MOV, NSFilePath=/var/mobile/Media/DCIM/101APPLE/IMG_1179.MOV, NSUnderlyingError=0x14f34870 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}}   /var/mobile/Media/DCIM/101APPLE/IMG_1179.MOV 2017-02-16 14:17:14.211491 ALTR[979:318794] Body file is unreachable: /var/mobile/Media/DCIM/101APPLE/IMG_1179.MOV   Error Domain=NSCocoaErrorDomain Code=257 "The file “IMG_1179.MOV” couldn’t be opened because you don’t have permission to view it." UserInfo={NSURL=file:///var/mobile/Media/DCIM/101APPLE/IMG_1179.MOV, NSFilePath=/var/mobile/Media/DCIM/101APPLE/IMG_1179.MOV, NSUnderlyingError=0x4c474d50 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}}

请帮我做这个

这是我的密码：

for (NSURL *videoURL1 in videoUrls)
    {
        imageName1 ++;

        NSDateFormatter *formatter;
        NSString        *dateString;

        formatter = [[NSDateFormatter alloc] init];
        [formatter setDateFormat:@"dd-MM-yyyy-HH:mm:ss"];

        dateString = [formatter stringFromDate:[NSDate date]];

        dateString =[NSString stringWithFormat:@"%@-%d", dateString ,imageName1];

        NSString *imgUniqueName = [NSString stringWithFormat:@"%@-%@", dateString ,@"AlterVideo"];
        NSLog(@"Unique Image Name : %@",imgUniqueName);

        riversRef =[storageRef child:[NSString stringWithFormat:@"images/%@",imgUniqueName]];

        // Upload the file to the path "images/rivers.jpg"
        FIRStorageUploadTask *uploadTask = [riversRef putFile:videoURL1 metadata:nil completion:^(FIRStorageMetadata *metadata, NSError *error)
                                            {
                                                if (error != nil)
                                                {
             /* handing error   */
                 }
                                                else {
                /* get response from firebase after success */
                        } }]; }

---

发布你的代码，说明你是如何上传文件的。我已经添加了我的代码，请看一看，让我知道videoURL1上的文件实际上没有读取权限，或者至少操作系统这么说。用于检查错误是什么，它说由于权限问题，

257是读取错误

。除此之外，我更希望添加元数据值，如

contentLength

，作为文件的实际长度。只需获取一些关于如何将文件上载到服务器的基本信息。