1. 错误: reason: 'keypath name not found in entity '
// 原因: request.predicate = [NSPredicate
predicateWithFormat:@"name = 'aaa' "]; 这个name 字段没有找到.
// 解决方法: 打开CoreData.xcdatamodeld 文件 查看你的对应的实体, 看看是否...
分类:
其他好文 时间:
2015-04-30 18:14:17
阅读次数:
116
现象:程序运行出现如下错误信息:reason=“Themodelusedtoopenthestoreisincompatiblewiththeoneusedtocreatethestore”原因:修改了DataModel文件,增加了新的Entity,包括Attribute属性、Relationship关系等等。解决办法:不管是模拟器还是真机,把app删除重新运行即可。
分类:
其他好文 时间:
2015-04-29 12:01:57
阅读次数:
106
现象:删除某行的时候,出现如下异常信息‘NSInternalInconsistencyException‘,reason:‘Invalidupdate:invalidnumberofrowsinsection0.Thenumberofrowscontainedinanexistingsectionaftertheupdate(5)mustbeequaltothenumberofrowscontainedinthatsectionbeforetheupdate(5),plu..
分类:
其他好文 时间:
2015-04-29 07:24:24
阅读次数:
195
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=4114
Nobita did use an outstanding anti-virus software, however, for some strange reason, this software did not check email attachment...
分类:
其他好文 时间:
2015-04-28 21:03:10
阅读次数:
164
1 $kesu_list=DD('Kesu.Kesu')->kesu_list(); 2 foreach($kesu_list[0] as $key=>$val){ 3 $reason_id_list[]['reason_id']=$val['reason_id']; 4 } 5 fore...
分类:
其他好文 时间:
2015-04-28 14:02:47
阅读次数:
109
HDFS 异常
HTTP ERROR 500
Problem accessing /nn_browsedfscontent.jsp. Reason:
Cannot issue delegation token. Name node is in safe mode.
The reported blocks 0 needs additional 10 blocks to reach th...
分类:
其他好文 时间:
2015-04-28 09:39:20
阅读次数:
152
In Microsoft Dynamics AX 2012, ListPages are more restricted from customization than in prior versions of AX. Primary reason for the restriction is so...
分类:
其他好文 时间:
2015-04-27 09:37:03
阅读次数:
221
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber length]: unrecognized selector sent to instance 网上...
分类:
移动开发 时间:
2015-04-26 18:01:19
阅读次数:
399
问题:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present modally an active controller .'
解决:
判断controller是不是有presentedViewController
if ([U...
分类:
移动开发 时间:
2015-04-22 14:01:02
阅读次数:
521
self.model=[[DataModel alloc]init];
[self.model setValue:@"searph" forKey:@"stockName"];
[self.model setValue:@"10.0" forKey:@"price"];
[self.model addObserver:self forKeyPath:@"price" ...
分类:
移动开发 时间:
2015-04-20 18:32:29
阅读次数:
152