mvanwingerden

Dear all,

I ran into the same problems, when trying to migrate a wordpress site from server to server. I am using a Mac. When using the Duplicator plugin, the default way to save the package, downloading over Safari, is actually unzipped, so you would need to zip the files again before FTP-ing to your new server. I ran into these problems when running installer.php with the package files still in a subfolder. This is the default unzipping behaviour. I fixed it by moving all the unzipped files into the folder where the installer.php file resides, removing the package zip file and its unzipped (now empty folder) and choosing the ‘manual unzip’ option from the advanced settings in the installer.php.

Then I could run the installer again and everything went smoothly.
Hope this solutions works for you as well!