Xcode Error

Question

i am getting this error

   "_CGRectZero", referenced from:
       _CGRectZero$non_lazy_ptr in RootViewController.o
       _CGRectZero$non_lazy_ptr in SecondViewController.o
 ld: symbol(s) not found
 collect2: ld returned 1 exit status

Build failed (1 error)

could someone tell me a solution to solve this?

Answer 1

Sounds like your project is missing a framework.

Right-click on the Frameworks folder in your project's Groups & Files column, then select Add > Existing Frameworks...

Choose CoreGraphics.framework from the frameworks list.

Once you rebuild, this error should go away (unless it is something else).