小编use*_*453的帖子

iOS /上的核心数据工作正常,但在iOS 8中获取更新或写入数据库时​​,我得到了

2014-09-19 01:16:31.819 xxxxxx [369:57150] __45- [PFUbiquityFilePresenter processPendingURLs] _block_invoke(439):CoreData:Ubiquity:Librarian在开始下载时返回严重错误错误域= BRCloudDocsErrorDomain Code = 5"操作无法运行没有完成.

(BRCloudDocsErrorDomain错误5 - URL处没有文档)"UserInfo = 0x175a85c0 {NSDescription = URL处没有文档,NSUnderlyingError = 0x175aefb0"操作无法完成.没有相应的文件和目录",

NSFilePath =/var/mobile/Library/Mobile Documents/xxxxx/CoreData/ATracker/mobile~268B3375-7A17-4FFA-89DE-AE1BF8DDB134/xxxxx/OJ~PXmuzk0E_yZN9NTVWA20~k_qcPzNgyW_uT_mz098 =/8929F33C-BB6A-48B6-B16C-BF612D04D947.1 .cdt} with userInfo {

NSDescription = "No document at URL";
NSFilePath = "/var/mobile/Library/Mobile Documents/xxxxx~xxxx~xxxxx/CoreData/xxxxx/mobile~268B3375-7A17-4FFA-89DE-AE1BF8DDB134/xxxxx/OJ~PXmuzk0E_yZN9NTVWA20~k_qcPzNgyW_uT_mz098=/8929F33C-BB6A-48B6-B16C-BF612D04D947.1.cdt";
NSUnderlyingError = "Error Domain=NSPOSIXErrorDomain Code=2 \"The operation couldn\U2019t be completed. No such file or directory\" UserInfo=0x175c2d50 {NSDescription=No such file or directory}";

对于这些网址:(

"file:///var/mobile/Library/Mobile%20Documents/xxxxx~xxxx~xxxxx/CoreData/xxxxx/mobile~268B3375-7A17-4FFA-89DE-AE1BF8DDB134/xxxxx/OJ~PXmuzk0E_yZN9NTVWA20~k_qcPzNgyW_uT_mz098=/8929F33C-BB6A-48B6-B16C-BF612D04D947.1.cdt"

)

一个用户报告我的应用程序在点击电子邮件按钮后立即崩溃.但是我无法在同一规格的设备上重现问题.

附加崩溃日志[self presentModalViewController:controller animated:YES];.我在我的reportVC.m中调用.控制器是MFMailComposeViewController的一个实例.

Incident Identifier: 4A06DE9B-178C-43C2-AE23-D8C7EEED7831
CrashReporter Key:   8b802dcda2f9dfd70003b0bedceac04ef79730f0
Hardware Model:      iPad3,6
Process:         ATracker [5610]
Path:            /var/mobile/Applications/ACABBAE7-C701-48AD-9DAC-9B4C0ABD3CFF/ATracker.app/ATracker
Identifier:      ATracker
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       2013-07-15 18:42:30.776 +0100
OS Version:      iOS 6.1.3 (10B329)
Report Version:  104

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread:  0

Last Exception Backtrace:
0   CoreFoundation                  0x3286c3e2 __exceptionPreprocess + 158
1   libobjc.A.dylib                 0x3a70695e objc_exception_throw + 26
2   UIKit                           0x34767118 -[UIViewController presentViewController:withTransition:completion:] + 3764
3   UIKit …