I am constantly getting below error while building app:

```
No architectures to compile for (ARCHS=arm6 arm7, VALID_ARCHS=armv7).

```

I tried adding `arm6 arm7` to architecture but didn't work. I also tried just `arm6` and `arm7`, but still not.

Also, I'm setting deployment target to `4.3 iPhone`.
I have Xcode version `4.3.1`.

Please help!