When I create a package in package manager, I build and install it, after which I download the package, but that gets downloaded a folder instead of a zipped file. Next if I try to upload the same page again after zipping it, it shows me error: as given in the image.
Infact, the problem is really peculiar. At times when I download a package, I get zipped file, which I can upload. But, at other times when I download, I get unzipped file, which on compressing doesn't gets uploaded!