O Linker Error: File is universal (three slices), but it does not contain a(n) ARMv7-s slice error for static libraries on iOS

Go to

Build Settings --> Build Active Architecture only  turn 'NO' to 'YES'. it will work out

for more clarification

http://stackoverflow.com/questions/12402092/file-is-universal-three-slices-but-it-does-not-contain-an-armv7-s-slice-err