When using the package unicode-math, I get the XeLaTex error: File `ucharcat.sty' not found.
XeLaTex then asks for a new filename. When I enter an empty filename, XeLaTex proceeds normally. But to do this every time is annoying. The conclusion from some googling was that this error should no longer appear. Specifically, (1) unicode-math requires ucharcat, and (2) XeTeX now incorporates ucharcat. But I am encountering the problem in XeTeX of TeX Live 2016/W32TeX. Any help would be appreciated. Kamal Abdali
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