objective c - ViewController may not respond to'method' problem -

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i know common problem, googled lot , seems no luck solve problem. have @interface testviewcontroller:uiviewcontroller , in implementation file have method defined:

-(void)method1 {   something;    [self method1];//here need call method if statement true , line warning testviewcontroller may not respond to'method1' got }  -(void)method2{   [self method1] //but there no problem line }

can me? in advance!

your method declarations missing in header. add

-(void)method1; -(void)method2;

to testviewcontroller.h file

update:

the reason why don't warning second call ([self method1] within method2) is, compiler knows method1 @ point. (because implementation occurs before method2)


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