Packaging fails

[Paratron]

TiDev seems to fall apart the last days...
I can't package my projects anymore suddenly. From time to time when I package an app, an alert box pops up after a couple of minutes saying:

Packaging failed with message: global name 'true' is not defined

And he just stops packaging.
This happens regardless of which options I choose in the "Package" dialog.

This seem to happen sometimes in Titanium Studio, too - the workaround of some users has been to switch the option "Show Splash Screen" to "Yes" - which is sadly not available in TiDev.
Could it be that appcelerator has changed it's packaging API?

Here is the Post from the Q&A Section covering the Issue in Titanium Studio: http://developer.appcelerator.com/question/129938/cant-packing-my-desktop-app-in-titaniumstudio-packaging-failed-with-message-global-name-true-is-no-defined