Ian <iank131 <at> gmail.com> writes:
> So, I guess I need to reinstall my LyX. > Does anyone else have any suggestion before I do so? First, does this happen only with this document, with other documents that contain TiKZ/PGF code (but not necessarily plots), or with all docs? Second, after you get the message, check the tail end of Document > LaTeX Log in LyX and see if you can spot an error message or anything else that might help pin down the culprit. FWIW, I had no problem with your document (TeXLive/LyX 2.1.3/Linux Mint). Paul