Users report issues with code signing their Objective-C based project with the newly-rolled out Mavericks image on Travis CI.
The error looks something like:
Code Sign error: No codesigning identities found: No codesigning identities (i.e. certificate and private key pairs) that match the provisioning profile specified in your build settings ("Chappy Dev Adhoc") were found. CodeSign error: code signing is required for product type 'Application' in SDK 'iOS 7.1'
A couple of users have reported that setting the keychain in use to be the default will fix this issue. For example:
security default-keychain -s ios-build.keychain security unlock-keychain -p travis ios-build.keychain