I believe just today Google released a new update to their iOS Analytics frame work (version 3.0). When I follow the instructions and try to run the code, I get:
I had libz.dylib and AdSupport.framework as per instruction from Google, it worked fine.
Then I had to add -all_load in other linker flags for some other library dependency, then google analytics started failing build with linker error.
I had to add libsqlite3.0.dylib framework to get it to work.
So there is something to do with -all_load linker flag