iOS plist can't load data fom plist but works on simulator

[ADHDsowhat]

\[code\]-(NSString*)dataFilePath{ NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentDirectory = [path objectAtIndex:0]; return [documentDirectory stringByAppendingPathComponent"ProperyList.plist"];}\[/code\]The iDevice can't load data form this path, only the simulator can.