Unknown errors in Xcode - objective-c

Question

I am following the instructions for a tutorial but I cannot figure out what is wrong. I have double checked everything. I put the the compiler errors in the code's comments below. Sorry, this will probably show how much of a noob I am.
// main.m
#import <Foundation/Foundation.h>
#import "LotteryEntry.h"
int main (int argc, const char * argv[])
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
// Creates the date object
NSCalendarDate *now = [[NSCalendarDate alloc]init];
//Seed the random number generator
srandom(time(NULL));
NSMutableArray * array;
array = [[NSMutableArray alloc]init];
int i;
for (i = 0; i < 10; i++) {
//create a date/time object that is 'i' weeks from now
NSCalendarDate *iWeeksFromNow;
iWeeksFromNow = [now dateByAddingYears:0
months:0
days:(i * 7)
hours:0
minutes:0
second:0];
}
//create the LotteryEntry object
LotteryEntry *newEntry = [[LotteryEntry alloc]init];
[newEntry prepareRandomNumbers];
[newEntry setEntryDate: iWeeksFromNow];
//Error says "Use of undeclared identifier "iWeeksFromNow'. Did I not declare it above?
//add the lottery entry object to the array
[array addObject:newEntry];
}
for (LotteryEntry *entryToPrint in array) {
//Error says " Expected identifier or '('
//Display it's contents
NSLog(#"%#", entryToPrint);
}
[pool drain];
return 0;
//Error says " Expected identifier or '('
}
//Error says " Expected External declaration

Answer 1

You are declaring iWeeksFromNow inside a for loop, that's why the compiler doesn't consider it to exist outside
declare it outside, and assign values to it inside

Answer 2

You have an extra closing } as you call the -dateByAddingYears method.

Answer 3

First error : you declare iWeeksFromNew inside a for loop, thus it's unreachable from outside.
You have to declare before the beginning of the loop.
Second error : you have a bracket '}' after [array addObject:newEntry]; so the compiler thinks its the end of your method, remove it.
That should fix all other error you have

Answer 4

First, iWeeksFromNow is declared within the scope of a for loop, so it will be visible only within that loop. Second, as pointed out by Black Frog, you have an extra closing parenthesis.

Answer 5

Move the declaration out that loop block. You've got a scope problem here: The iWeeksFromNew only exists within the loop
NSCalendarDate *iWeeksFromNow;
int i;
for (i = 0; i < 10; i++) {
//create a date/time object that is 'i' weeks from now
iWeeksFromNow = [now dateByAddingYears:0
months:0
days:(i * 7)
hours:0
minutes:0
second:0];
}