Hello Ray @rwenderlich,
I am a beginner in iOS and OpenGL ES and I like your tutorials- very comprehensive and easy to follow.
However, I have encountered “Build Failed” when tried this tutorial (Beginner OpenGL ES and GLKit Part 2: Vertex Buffers and Attributes).
The errors are as follows:
Undefined symbols for architecture x86_64:
** “OBJC_CLASS$_RWTBaseEffect”, referenced from:**
** objc-class-ref in ViewController.o**
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
I am using the following settings:
- Base SDK: latest iOS 10.2
- Architectures: Standard architectures (armv7, arm64)
- Build Active Architectures Only: Yes
- Valid Architectures: arm64 armv7 armv7s
- Xcode version: 8.2.1
Could you please advice on this matter?
Hope to hear from you soon.
Thank you very much.