Codesign check fails when building .ipa file

Application type: mobile Titanium SDK: version number, build date and build hash, copied and pasted from the console at application launch Platform & version: iOS 5.0 Device: iOS iPod/iPhone Host Operating System: OSX 10.6 Lion Titanium Studio: Titanium Studio, build: 1.0.8.201201031149

I am trying to distribute my application through the App Store and Ad-Hoc. I cleaned the project, built it, and selected distribute through app store. Everything seems to work until I choose the archive in the Xcode Organizer and click Share...

Here is the output from Titanium:

[DEBUG] copying: /Users/Paul/Library/Application Support/Titanium/mobilesdk/osx/1.8.0.1/iphone/headers/TiCore/TiStringRef.h => /Users/Paul/Documents/Titanium Studio Workspace/Luvn' Local/build/iphone/headers/TiCore/TiStringRef.h
[DEBUG] copying: /Users/Paul/Library/Application Support/Titanium/mobilesdk/osx/1.8.0.1/iphone/headers/TiCore/TiStringRefCF.h => /Users/Paul/Documents/Titanium Studio Workspace/Luvn' Local/build/iphone/headers/TiCore/TiStringRefCF.h
[DEBUG] copying: /Users/Paul/Library/Application Support/Titanium/mobilesdk/osx/1.8.0.1/iphone/headers/TiCore/TiValueRef.h => /Users/Paul/Documents/Titanium Studio Workspace/Luvn' Local/build/iphone/headers/TiCore/TiValueRef.h
[DEBUG] copying: /Users/Paul/Library/Application Support/Titanium/mobilesdk/osx/1.8.0.1/iphone/headers/TiCore/WebKitAvailability.h => /Users/Paul/Documents/Titanium Studio Workspace/Luvn' Local/build/iphone/headers/TiCore/WebKitAvailability.h
[DEBUG] Detecting modules in /Users/Paul/Documents/Titanium Studio Workspace/Luvn' Local/modules
[DEBUG] Detected module for android: ti.barcode 1.2 @ /Users/Paul/Documents/Titanium Studio Workspace/Luvn' Local/modules/android/ti.barcode/1.2
[DEBUG] Detected module for iphone: ti.barcode 1.3 @ /Users/Paul/Documents/Titanium Studio Workspace/Luvn' Local/modules/iphone/ti.barcode/1.3
[DEBUG] Detecting modules in /Users/Paul/Library/Application Support/Titanium/modules
[DEBUG] Looking for Titanium Module id: ti.barcode, version: 1.3, platform: <any platform>
[INFO] Performing clean build

error: Codesign check fails : /Users/Paul/Library/Developer/Xcode/Archives/2012-01-05/Luvn' Local_17-15-37.xcarchive/Products/Applications/Luvn' Local.app: a sealed resource is missing or invalid
In architecture: armv6
resource missing: /Users/Paul/Library/Developer/Xcode/Archives/2012-01-05/Luvn' Local_17-15-37.xcarchive/Products/Applications/Luvn' Local.app/._.DS_Store
resource missing: /Users/Paul/Library/Developer/Xcode/Archives/2012-01-05/Luvn' Local_17-15-37.xcarchive/Products/Applications/Luvn' Local.app/luvnlocal/images/dashboard/._.DS_Store
resource missing: /Users/Paul/Library/Developer/Xcode/Archives/2012-01-05/Luvn' Local_17-15-37.xcarchive/Products/Applications/Luvn' Local.app/luvnlocal/._.DS_Store