I believe you need to upload the xml files using Document Management under the Applications menu. I had simalar problems with jsp pages that I file copied to the server instead of using the Document Management interface which loads them to the repository.
If someone could let me know where this would be done? I did not think xml files needed to be loaded in this way and I have not been able to. I had thought you could just put them in the or a sub-directory you choose like /xml_files
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.