Thanks a lot. I had the same problem, the file omp-3.3.0-14.tar.gz was downloaded fine, but oddly after the uncompression using 7-Zip the file MonographONIX30XmlFilter.inc.php was 0 bytes. I had to reinstall 7-Zip and the problem was solved. I would like to ask you: ¿during the installation process, besides creating tables, the files in omp and ojs directories are modified and checked?
During an installation, the OMP installation files are not verified or modified. In the past we’ve had a couple of reports that 7zip does not handle symbolic links inside the archive properly – see e.g. Problems Upgrading to Version 2.4.6 - #10 by asmecher. That’s consistent with the behaviour you’re seeing, where MonographONIX30XmlFilter.inc.php appears to be empty. You could try using Winzip or tar instead.
Public Knowledge Project Team