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PONSData writeToFile writes Plist successfully, but then crashes, giving NSInvalidArgumentException
 

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  1. PONSData writeToFile writes Plist successfully, but then crashes, giving NSInvalidArgumentException
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    <p>I am converting a JSON file to a plist using the new NSJSONSerialization class and NSPropertyListSerialization class. I manage to convert my JSON to a Plist without errors, but then, at my last step, when I go to write the plist to my desktop, the program crashes, but AFTER the Plist has been generated!</p> <pre><code>NSData *data = [[NSData alloc] initWithContentsOfURL:path]; \\(NSURL *)path --&gt;goes to my JSON file NSMutableDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; //the following removes all key/object pairs where the object is null, because NSPropertyListSerialization with throw an error if there are null values for (id __strong object in [json objectForKey:@"terms"]) { if ([object objectForKey:@"image"] == [NSNull null]) { [object removeObjectForKey:@"image"]; } } //the following NSPropertyListSerialization method returns an NSData id plist = [NSPropertyListSerialization dataFromPropertyList:(id)json format:NSPropertyListXMLFormat_v1_0 errorDescription:nil]; NSError *writeToFileError; [plist writeToFile:@"/Users/kalaracey/Desktop/test.plist" atomically:YES encoding:NSUTF8StringEncoding error:&amp;writeToFileError]; </code></pre> <p>Then, at this last line, an <code>NSInvalidArgumentException</code> is thrown, and crashes my program. However, the plist was successfully generated! I can read it, and all is well, except my program crashes. </p> <p>Could someone please explain why this crashes, and how I could avoid crashing?</p>
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    1. USkalaracey
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    1. COWhat's the exception...
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    2. COThe exception is an `NSInvalidArgumentException` for the last method - i.e., plist (supposedly) does not respond to `writeToFile:atomicallyencoding:error:` See below how Mundi fixed it.
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      1. USkalaracey
 

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