Undefined symbols for architecture armv7 when using ZXing library in Xcode 4.5

Question

What I am trying to do

Integrate Zxing, QR code reader framework, in my iPhone project. I checked out ZXing sdk from here. I ran the sample project coming with ZXi

Answer 1

It may also be necessary to set the ZXingWidget target's "Build Active Architecture Only" flag to "NO".