invalid context 0x0 , please set CG_CONTEXT_SHOW_BACKTRACE

[samuelbeek]

Cartography works for me, but recently I've been getting a lot of weird errors in the console, when I use it.

Example I have this in my layoutSubviews()

super.layoutSubviews()

constrain(questionLabel) {question in

   question.width == question.superview!.width - 68
   question.height == 31
   question.centerX == question.superview!.centerX
   question.top == question.superview!.top + 158
}

This generates these errors in the console:

Nov  4 12:14:33  myapp[61898] <Error>: CGContextDrawPath: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Nov  4 12:14:33  myapp[61898] <Error>: CGContextSetRGBFillColor: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Nov  4 12:14:33  myapp[61898] <Error>: CGContextAddPath: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Nov  4 12:14:33  myapp[61898] <Error>: CGContextDrawPath: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.

Does anybody know what I can do to solve or hide these errors?