I went to create a PDF of my work on LyX (by clicking the eyeballs on the top-left of the document), but it won't let me. enter image description here

What does this mean? How can I recover the document so that I can view the PDF? This work was done on a different laptop, so I saved the file to a flash drive and uploaded it to a different laptop before this error occurred.

  • Are you using MikTeX? Jun 16, 2013 at 1:52
  • Well I was told to download MikTex before LyX, but that's about it. So not directly, but I'm sure LyX is. Jun 16, 2013 at 1:57
  • You are running windows, right? Jun 16, 2013 at 1:59
  • Yes. 8, but I've never had that problem before. Jun 16, 2013 at 2:12

1 Answer 1


Well, your problem is quite simple: you are not finding the package file etex.

As it seems you are somewhat new to MikTeX, so I would recommend you go through this question as a starting point: What is MikTeX?

Later on, for maintenance purposes, you may want to check these questions: How should one maintain and update a MiKTeX installation? and How often do I have to synchronize MikTeX?

Regarding the installation of etex, you should take a look at these other posts:

Basically, you should try this in your MikTeX package manger:

  1. Refresh the FNBD (as administrator)
  2. Synchronize Package Database

To finally ensure you have the file installed, try what was stated here:


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