Xcode 5 setter method: use of undeclared identifier

Question

My .h file has

@property (strong,nonatomic) NSString *usertoken;

My .m file has

@synthesize usertoken;

-(void)setUsertoken:(NSString *)usertoken
{
    _usertoken=usertoken;


}

-(NSString *)usertoken
{

}

I am in the process of writing the setters and getters (i.e. they are not done yet). But after writing the line _usertoken=usertoken, Xcode is showing an error for _usertoken:

User of undeclared identifier '_usertoken'; did you mean 'usertoken'?

Does anyone know how I might fix this?

I think that `@synthesize` is unnecessary in Xcode 5. So you can either remove it or try `@synthesize usertoken = _usertoken;`. — spassas, Jul 14 '14 at 16:50
@spassas: `@synthesize` is not unnecessary if you declare both getter and setter yourself — Scott Berrevoets, Jul 14 '14 at 16:55

Dima · Accepted Answer · 2014-07-14T16:59:58.320

4

The problem is your use of @synthesize.

By simply writing @synthesize usertoken;, an ivar is created that is also just called userToken (no underscore).

If you instead do @synthesize usertoken = _userToken;, it will work correctly.

edited Jul 14 '14 at 16:59

answered Jul 14 '14 at 16:54

Dima

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The last part of your answer is not correct. If you implement both getter and setter, it will not automatically create an ivar unless you explicitly synthesize one. – Jesse Rusak Jul 14 '14 at 16:55
Ah whoops. I actually didn't notice that he did that. Fixing my answer now. – Dima Jul 14 '14 at 16:59

Xcode 5 setter method: use of undeclared identifier

1 Answers1