How to send a ZIP file attachment in a post request for a REST service using SoapUI

Hi,

Now the REST service that i have only takes a post request to stream a zip file that containes bunch of CSVs, what i tried to do is only creating a new REST project with attaching the zip file that the server expect to recieve, but all i am getting is this message {"message": "An error has occurred."}.

The method is set to "Post", and the media type is set to "multipart/form-data".

i've been working on this tool for only a week so if there is anything else i should do please let me know

i did alot of googling about this case with no luck

Thanks in advance