# Some issues with the latest update of MikTeX

Baris Erkus bariserkus at hotmail.com
Sat Nov 9 13:40:59 UTC 2019

```On 09-Nov-19 1:33 PM, Kees Zeelenberg (kzStats) wrote:
> -----Oorspronkelijk bericht-----
> Van: lyx-users <lyx-users-bounces at lists.lyx.org> Namens Baris Erkus
> Verzonden: donderdag 7 november 2019 09:10
> Aan: lyx-users at lists.lyx.org
> Onderwerp: Some issues with the latest update of MikTeX
>
>> ....
>> LyX reported that iftex.sty was missing. I checked MikTeX and indeed iftex package was somehow not loaded in the package list, > which is awkward since I have installed "all" MikTeX packages and everything is expected to be there. It does not make sense
>>   MikTeX remove some standard packages during a MikTeX update.
>> ...
>> Please do not install the latest MikTeX update till you make sure it is safe to do so.
> On my machine (Windows 10, x64, LyX 2.3.3, MikTeX installed as administrator in C:\Program Files) everything still works fine after updating the MikTeX packages. The location of the iftex package has been changed: it is now in tex\generic instead of tex\latex; the latex\iftex folder is now indeed empty, but the generic\iftex folder is full. I did not have to reconfigure LyX, iftex.sty is still found when included in the preamble.
> Perhaps somehow the MikTeX file name database was not refreshed?
>
That explains it. As you have sad, probably something happened to MikTex
and could not properly address the correct location of the iftex pacakge.

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