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POcoredata problem nsurl may not respond to stringByAppendingPathComponent
 

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  1. POcoredata problem nsurl may not respond to stringByAppendingPathComponent
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    <p>I had some problems after starting a new coredata project with the xcode 3.2.5... my previous projects with core data (in previous xcode) worked fine, so I dont know what is the difference??</p> <p>so the error I get when I build and go to the view that calls the core data is></p> <pre><code>*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSURL initFileURLWithPath:]: nil string parameter' </code></pre> <p>the strange thing is that in my *AppDelegate.m, in (edited thanks Rog but still not working!)</p> <pre><code>- (NSPersistentStoreCoordinator *)persistentStoreCoordinator { if (persistentStoreCoordinator_ != nil) { return persistentStoreCoordinator_; } NSString *storePath = [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"staff.sqlite"]; NSURL *storeUrl = [NSURL fileURLWithPath:storePath]; //new position for the storeUrl! // Put down default db if it doesn't already exist NSFileManager *fileManager = [NSFileManager defaultManager]; if (![fileManager fileExistsAtPath:storePath]) { NSString *defaultStorePath = [[NSBundle mainBundle] pathForResource:@"staff" ofType:@"sqlite"]; if (defaultStorePath) { [fileManager copyItemAtPath:defaultStorePath toPath:storePath error:NULL]; } } </code></pre> <p>in the </p> <pre><code> NSString *storePath = [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"staff.sqlite"]; </code></pre> <p>I get the warning</p> <pre><code>NSURL may not respond to '-stringByAppendingPathComponent' </code></pre> <p>I option + click this stringByAppendingPathComponent and get (Symbol not found!!!!)</p> <p>but in other projects I do option + click in the same and get the definition!!</p> <ul> <li>so is this warning related to my error??</li> <li>how to fix it???</li> </ul> <p>Edit, included this in my viewDidLoad</p> <blockquote> <p>NSLog(@"path= %@", [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]) ;</p> </blockquote> <p>which gives me in console:</p> <pre><code>path= /Users/mkss9/Library/Application Support/iPhone Simulator/4.2/Applications/2F364C20-2B87-4ABB-AA3E-FB6F7C15096F/Documents </code></pre> <p>please!, Im getting crazy !!</p> <p>thank you!</p>
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