file was built for archive which is not the architecture being linked (i386)
ios, ipad, iphone, linker-errors, xcode
Solution
After struggling with this same problem and following all the accepted answers of updating build settings, clearing the linker search path, etc.. I finally discovered an answer that worked for me.
Before building, make sure you select right type (iPhone Simulator) instead of iOS Device. Then rebuild. Otherwise, you're trying to use a library built for an iOS device (arm processor) on a simulator on your mac (i386). Should've been obvious, but wasn't.
Before:
After:
Now, look in the Products group in the Navigator > right click your static library (.a file) > Show in Finder, you'll notice that its in a Debug-iphonesimulator folder instead of Debug-iphoneos. I didn't pay any attention to the folder name originally, or I might have thought of this sooner.
Hope this helps.
Problem
I got to build static library. I want to use in my iPhone and ipad app. When I try to run the simulator I get linking errrors. I am new to iOS development. kindly help; ld: warning: ignoring file /Users/valuelabs/Desktop/DruvaProject/libraries/libnetUtils.a, file was built for archive which is not the architecture being linked (i386) Undefined symbols for architecture i386: "_OBJC_CLASS_$_netUtils", referenced from: objc-class-ref in ViewController.o ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation) I tried adding i386 in the Architectures. but no luck