Why do I get "Invalid receiver type 'NSInteger'"?

Probably a simple question: Why do I get an compiler warning for the following objective-C code?

//_classificationView.tag is a NSString

CGFloat imageWidth =  [_classificationView.tag floatValue] * 14.0;

And why does it开发者_C百科 say something about NSInteger?

Thanks for answers! Dennis

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Because the tag property is a NSInteger and not a class type. Just use the following instead:

CGFloat imageWidth =  _classificationView.tag * 14.0;