Cannot define method `vertices' because no Objective-C stub was pre-compiled for types

Question

I have just been using RubyMotion and Joybox today.

After installed RubyMotion 2.22 and Joybox 1.1.1 (with rvm 1.25.15, ruby 2.0.0-p353@joybox, on Mac OS X 10.9), and go on with Joybox round 1 article, just after 'motion create --template=joybox-ios test01' and 'rake', I keep getting this error:

Cannot define method vertices' because no Objective-C stub was pre-compiled for types^{CGPoint=ff}@:'. Make sure you properly link with the framework or library that defines this message.

I spent hours searching on the net but still can't find a solution. I'm wondering could someone give me some insight?

Things I tried:

• Checked https://github.com/rubymotion/Joybox/issues/42

• Reinstalled xcode command line tools.

• Removed/Re-installed Joybox gem.

• Re-installed RubyMotion

Thank you,

-Long

Answer 1

I updated to version 2.22 of RubyMotion and this caused the same issue for me.

Downgrade RubyMotion

sudo motion update --cache-version=2.20

and set your rubymotion to $:.unshift("/Library/RubyMotion2.20/lib") in you Rakefile.