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copied!<h2>Relevant portion of comments</h2> <h3>Jonathan</h3> <p>Given that the problem is not just <code>.</code> vs <code>-></code>, the other main option, then, is that your viewController does contain any moles or bunnies.</p> <h3>Joe</h3> <blockquote> <p>I'm using the tutorial at <a href="http://www.raywenderlich.com/1914/how-to-save-your-app-data-with-nscoding-and-nsfilemanager" rel="nofollow">http://www.raywenderlich.com/1914/how-to-save-your-app-data-with-nscoding-and-nsfilemanager</a>. (There is code there to download.)</p> <p>Doing:</p> <pre><code>viewController->mole = loadedMoles; </code></pre> <p>says</p> <pre><code>'struct RootViewController' has no member named 'mole' </code></pre> <p>How do I add it to viewController? </p> <p>Although in the tutorial they use</p> <pre><code>NSMutableArray *loadedBugs = [ScaryBugDatabase loadScaryBugDocs]; RootViewController *rootController = (RootViewController *) [navigationController.viewControllers objectAtIndex:0]; rootController.bugs = loadedBugs; </code></pre> </blockquote> <h3>Jonathan</h3> <p>In the downloaded code (<code>ScaryBugs3/Classes/rootViewController.h</code>), the demo has:</p> <pre><code>@class EditBugViewController; @interface RootViewController : UITableViewController { NSMutableArray *_bugs; EditBugViewController *_editBugViewController; } @property (retain) NSMutableArray *bugs; @property (retain) EditBugViewController *editBugViewController; @end </code></pre> <p>Does your equivalent have 'mole' and 'bunny' properly defined? If so, I'm at a loss to help you much further.</p> <h3>Joe</h3> <blockquote> <p>I never downloaded the source code, so I didn't see any of that. Thanks, I was wondering if he might have bugs as an array instead of a bug sprite.</p> </blockquote> <h2>Not very relevant portion of answer</h2> <p>In regular C or C++ with GCC, the error message normally occurs when either:</p> <ul> <li>You use <code>structptr->member</code> and you should use <code>structvar.member</code>, or</li> <li>You use <code>structvar.member</code> and you should use <code>structptr->member</code>.</li> </ul> <p>Objective-C is close enough to C at this juncture that you probably need to review your use of <code>.</code> vs <code>-></code> notation, I believe.</p> <p>Now that your code is legible, the lines giving the error are:</p> <pre><code>viewController.mole = loadedMoles; //error viewController.bunny = loadedBunnies; //error </code></pre> <p>You probably need to use <code>viewController->mole</code> and <code>viewController->bunny</code> instead? (I'm not sure of that, but to the extent Objective-C is a superset of C, that would be a necessary change. However, it could be that Objective-C does away with the need to distinguish between <code>.</code> and <code>-></code>.)</p>

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