绘图奇怪的错误

Question

"_GContextSetFillColorWithColor", referenced from:
  -[GraphView drawLineGraphWithContext:] in GraphView.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

这个错误是什么意思？这似乎发生在这条线上？

GContextSetFillColorWithColor(ctx, [[UIColor colorWithRed:1.0 green:0.5 blue:0 alpha:1.0] CGColor]);

Answer 1

这意味着你拼错了。您应该收到编译器的警告。