Exportation to PDF (and others) Error

Everytime that I try to export to PDF or DOC, kinda of error happens. How can I fix it?

You’ll have to be more specific. What kind of error? Show a screenshot of it.

So, actually now I just founded the ‘compile’ option and it works very well for me. I still dont know what happens with the other way, but its fine. Thanks a lot for help!! <3

Compile is the only way to export documents (which are RTF files) to pdf, doc, docx, or anything but rtf.