Building for Xcode 4.2.1 with Xcode 4.3

Hi

I have xcode 4.3.3 installed, but would like to build for a device that has 4.2.1 installed (iPhone 3), when I build, it builds for 4.3.3. Is there a way or setting that I can change to build for 4.2.1 using 4.3.3? [import]uid: 143974 topic_id: 27601 reply_id: 327601[/import]

Just to add to the above, I don’t have any other versions of Xcode on my machine, running corona build 2012.826. If I add the MinimumOSVersion=“4.2.1” to build setting, I get the following error: warning: iPhone/iPod Touch: application executable is missing a required architecture. At least one of the following architecture(s) must be present: armv6 (-19033) [import]uid: 143974 topic_id: 27601 reply_id: 112081[/import]