createDirectoryAtPath:withIntermediateDirectories:attributes:error: Returns NO when it exists
createDirectoryAtPath:withIntermediateDirectories:attributes:error: Returns NO when it exists
- Subject: createDirectoryAtPath:withIntermediateDirectories:attributes:error: Returns NO when it exists
- From: Andreas Grosam <email@hidden>
- Date: Mon, 29 Oct 2012 10:22:57 +0100
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?
OS X 10.7.5
Regards
Andreas
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