The same happens when I try to use the beta version of BWP :
ERROR: [MTOWN2.CRE] -> [override] Patching Failed (COPY) (Failure("Conflict in priority list.")) ERROR: Failure("Conflict in priority list.") Enemy items shatter (BGT Tweak Pack) was not installed due to errors. You can try to repair the problem and start the installation of the component again. In this case please select "retry" after the repair. If you don't want to spent time for that now, you can also continue without the component or exit the program. The BiG World Setup will continue with the installation of that component. Enter [r]etry, [c]ontinue or [e]xit.
I have joined the debug files to my message, in case they could be useful.
What could I be doing wrong ?