On 29 Oct 2012, at 09:22, Andreas Grosam <agro...@onlinehome.de> wrote:

> I'm attempting to create a directory with NSFileManager's method. The 
> directory may already exist. 
> 
> According the documentation 
> <https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSFileManager_Class/Reference/Reference.html>
>  the method shall return YES if the directory already exists:
> 
> "
> Return Value
> YES if the directory was created or already exists or NO if an error occurred.
> "
> 
> However, when the directory already exists it returns NO with error parameter 
> set:
> 
> 
>           NSFileManager* fm = [[NSFileManager alloc] init];
>           NSString* tmpDir = [NSTemporaryDirectory() 
> stringByAppendingPathComponent:@"Test"];
>           NSError* error;
>           if (![fm createDirectoryAtPath:tmpDir
>              withIntermediateDirectories:NO
>                               attributes:nil
>                                    error:&error]) {
>               NSLog(@"ERROR: setup test environment with error: %@", error);
>           }            
> 
> 
> 
> Console:
> 
> ERROR: setup test environment with error: Error Domain=NSCocoaErrorDomain 
> Code=516 "The file “Test” couldn’t be saved in the folder “T” because a file 
> with the same name already exists." UserInfo=0x100600150 
> {NSFilePath=/var/folders/m9/5p__qm3967qchc9_26tl85km0000gn/T/Test, 
> NSUnderlyingError=0x100602d00 "The operation couldn’t be completed. File 
> exists"}
> 
> 
> Do I miss something?

Is it possible you've ended up with a *file* there named "Test" rather than a 
directory?


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