In Xcode an error says 'activities' undeclared - iphone

Question

Hello I'm new to developing and I was wondering if any of you pros would know how to fix this issue.
My code is Below: InstaTwitViewController.m:
#import "InstaTwitViewController.h"
#implementation InstaTwitViewController
/*
// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
*/
/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
}
*/
/*
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
activities = [[NSArray alloc] initWithObjects:#"sleeping",
#"eating", #"working", #"thinking", #"crying", #"begging",
#"leaving", #"shopping", #"hello worlding", nil];
feelings = [[NSArray alloc] initWithObjects: #"awesome",
#"sad", #"happy", #"ambivalent", #"nauseous", #"psyched",
#"confused", #"hopeful", #"anxious", nil];
}
*/
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[activities release];
[feelings release];
[super dealloc];
}
- (NSInteger)numberOfComponentsInPickerView: (UIPickerView *)
pickerView {
return 2;
}
- (NSInteger)pickerView:(UIPickerView *)
pickerViewnumberOfRowsInComponent :(NSInteger)component {
if (component == 0) {
return [activities count];
}
else {
return [feelings count];
}
}
#end
Next to [activities count] and [activities release] it states an error "'activities' undeclared"
InstaTwitViewController.h:
//
// InstaTwitViewController.h
// InstaTwit
//
// Created by John Bridge on 5/2/11.
// Copyright 2011 __MyCompanyName__. All rights reserved.
//
#import <UIKit/UIKit.h>
#interface InstaTwitViewController : UIViewController
<UIPickerViewDataSource, UIPickerViewDelegate> {
NSArray* actvities;
NSArray* feelings;
}
#end

Answer 1

EDIT
You have a typo in your property declaration.
actvities should be activities, with an i.
You should be more careful while coding, and reading your own code...
EDIT END
Apparently, you haven't declared the activities variable. That's why XCode says it's undeclared...
I guess it should be an NSArray... You need to declare the variable in your class interface (the header file).
Something like:
#interface InstaTwitViewController: UIViewController
{
NSArray * activities;
}
#end
Then, in your implementation, you need to allocate it, for instance in the init method:
- ( id )initWithNibName: ( NSString * )nibNameOrNil bundle: ( NSBundle * )nibBundleOrNil
{
if( ( self = [ super initWithNibName: nibNameOrNil bundle: nibBundleOrNil ] ) )
{
activities = [ NSArray new ];
}
return self;
}
And don't forget to release it in the dealloc method:
- ( void )dealloc
{
[ activities release ];
[ super dealloc ];
}

Answer 2

Remove the /* and */ code before and after the viewDidLoad method, and declare an NSArray called activities in your .h file.
NSArray *activities;
EDIT---- As MacMade said, just fix the spelling mistake!