Problem with xbap (Urgent)

Question

Hi all

I met a strange problem with xbap that after I opened the output XBAP file once, then changed in the project then built the project and tried to open xbap file other time, I have wondered with that no change in the output xbap file.

I tried also to delete the xbap file and open it again after another creation after the building and I had the same result that the changes hadn't appear in the new output xbap file.

any advices will be appreciated :)