Error: linker command failed with exit code 1

[heart2friend]

error MT5209: Error: warning: ignoring file ....../obj/iPhone/Release/mtouch-cache/BEMCheckBox.framework/BEMCheckBox, missing required architecture armv7s in file ...../obj/iPhone/Release/mtouch-cache/BEMCheckBox.framework/BEMCheckBox (4 slices) (Qualbe1DMobileApp.iOS) Native linking

Error MT5211: Native linking failed, undefined Objective-C class: BEMCheckBox. The symbol 'OBJC_CLASS$_BEMCheckBox' could not be found in any of the libraries or frameworks linked with your application. (MT5211) (Qualbe1DMobileApp.iOS)

Error MT5211: Native linking failed, undefined Objective-C class: BEMCheckBoxGroup. The symbol 'OBJC_CLASS$_BEMCheckBoxGroup' could not be found in any of the libraries or frameworks linked with your application. (MT5211) (Qualbe1DMobileApp.iOS)