Cocoa Lumberjack Syntax Error

[Ryan Liao]

Hi,

I am new to xCode coding, so I have a few questions.

I am currently using the latest xCode to develope iPhone app.

To import the framework, do I import the entire folder or do I only have to drag certain files into the project folder?

And when I imported the DDFileLogger framework,I'm getting unexpected '@' in program errors in DDFileLogger.m:

- (NSString *)description 
{
return [@{@"filePath": self.filePath, 
@"fileName": self.fileName, 
@"fileAttributes": self.fileAttributes, 
@"creationDate": self.creationDate, 
@"modificationDate": self.modificationDate, 
@"fileSize": @(self.fileSize), 
@"age": @(self.age), 
@"isArchived": @(self.isArchived)} description]; 
}

Please provide possible solutions to fix this.

Thank You Very Much!,

-Ryan

[mkloster]

Ryan,

I got that error when I compiled as well. My solution was to upgrade to the latest xCode and compiler (v4). 

The syntax is new to the latest version of Objective-C. The '@' is defining a NSDictionary literal in this case. The same symbol can be used to define NSNumber literals and NSArray literals too.

Is upgrading your xCode and compiler and option?

Michael

[Ryan Liao]

Hi Michael,

Thank you very much for replying to and solving my problem!!!

I upgraded my xCode to 4.4.1 and it got rid of the @ syntax problem!!!.

However, when I am using the framework, it still gives me many errors.

I want to use DDFileLogger to save my logs to a file, but I am having trouble setting it up.

Can you please provide explanations on how to use DDFileLogger?

Thanks,

Ryan

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[mkloster]

Have you found this document:

https://github.com/robbiehanson/CocoaLumberjack/wiki

The Getting Started section shows an example of a file logger. 

If you give an example of the error. It will be easier to help.

Michael

[Ryan Liao]

I have read the Getting Started Section and the section in regard of log file management.

However, I could not find any examples on setting up the directory path and writing to file.

-Ryan

To view this discussion on the web visit https://groups.google.com/d/msg/cocoalumberjack/-/rMtr8wxlr1YJ.

[Michael Kloster]

By default, the files are stored under:

Library/Caches/Logs

I prefer to keep my logs under Documents. So, I've set up mine like this:

NSString* baseDocDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString* logDir = [NSString stringWithFormat:@"%@/logs",baseDocDir];
DDLogFileManagerDefault* logFileManager = [[[DDLogFileManagerDefault alloc ]initWithLogsDirectory:logDir] autorelease];
DDFileLogger* fileLogger = [[[DDFileLogger alloc] initWithLogFileManager:logFileManager]autorelease];
//...other settings...
[DDLog addLogger:self.defaultFileLogger];

Its the DDLogFileManagerDefault where you can specify the log directory. Now, logs will be written under Documents/logs

Give that a try, and let me know how it goes.

Michael