NSFileManager创build目录错误518 NSFileWriteUnsupportedSchemeError

我正在尝试创build一个目录

NSError*error=nil; NSString* BIDirectory=[[NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES) objectAtIndex:0] stringByAppendingPathComponent:@"BI"]; BOOL isDir,flag=YES; //if the directory doesn't exist create it. if(!([[NSFileManager defaultManager] fileExistsAtPath:BIDirectory isDirectory:&isDir]&& isDir)) flag=[[NSFileManager defaultManager] createDirectoryAtURL:[NSURL URLWithString:BIDirectory] withIntermediateDirectories:YES attributes:nil error:&error]; 

我得到了以下错误

 enter code hereError Domain=NSCocoaErrorDomain Code=518 "The operation couldn't be completed. (Cocoa error 518.)" UserInfo=0x197190 {NSURL=/var/mobile/Applications/55793654-6CDB-4B07-8FBF-553DC37D583D/Library/Caches/BI} 

也许这个url是错的？

Answer 1

代替

  [NSURL URLWithString:BIDirectory] 

请用

  [NSURL fileURLWithPath:BIDirectory] 

在本地文件上使用URLWithString：BIDirectory是错误的