In Tizen 2.1, there are some changes that may require additional Titanium Studio support. In 2.1, there is a new requirement to generate and use a security certificate, before one can build and deploy web apps. Previously, a default developer certificate was used automatically.
In order to reference the certificate, new CLI flags were added in Tizen 2.1 build script (example below, new flags are keystore, password and keystoreca).
These paths have to be configurable in Titanium Studio, where Tizen SDK properties are set up, and used when invoking build commands for Tizen.