missing required architecture x86_64 in file libCorePlot-CocoaTouch.a

Question

According to the Ray Wenderlich tutorial, I done the following :

Step 1 - I downloaded CorePlot_1.4.zip o

Answer 1

Simplest Solution that works for me: Go to your project > build setting > architecture. Change architecture as armv7 and delete others like armv6,etc like as given in the image below :-