xcode error:Undefined symbols for architecture i386:
How to fix:
This problem was from 2 causes.
Check using library in your project.
Build Phases -> Compile Sources -> Link Binary With Libraries
QuartzCore.framewrok / libsqlite3.0.dyblib and so on.
2.Missed compile target file
Check “Compile Sources” to all files show on this area.
Build Phases -> Compile Sources