Upgrading to xcode 4 error No architectures to compile for

Question

I am getting an error after upgrading to xcode 4, for all of the library projects that my application depends on.

[BEROR]No architectures to compile f

Answer 1

Had similar issues with xcode6 it seems to pop when upgrading xcode, tried all of what is suggested with no success what worked for me was in the new xcode created a simple new app(tabbed) and made sure my App had the same settings for architectures