Xcode Build Problem (MinimumOSVersion value is invalid)

When I build app with Xcode 3.2.3 (iPhone SDK 4), following image was showed in Build Log

Info.plist: MinimumOSVersion value is invalid. It must be a valid version: (-19024)

Check the MinimumOSVersion in the info.plist file itself. It may have gotten set or corrupted somehow. The project info panel in your additional screenshot shows how the product file thinks the info.plist will be set and not how it actually ends up set.

Check the path to info.plist file listed in the target (not resources) to make sure you've got the right one actually being put into the built product.

Check that your SDK is set for the right platform e.g. you can't set SDK 3.2 for an iPhone only app.

I got it. It's a problem of Target Build (not project Build). I need to check Target Build , Base SDK.

Thank All.