# Why a processing error under Windows but not Linux?

Kenward Vaughan kay_jay at kvaughan.family
Fri Mar 6 04:25:17 UTC 2020

On 3/5/20 5:39 PM, Richard Kimberly Heck wrote:
> On 3/5/20 8:25 PM, Kenward Vaughan wrote:
>>
>> Hi all,
>>
>> I have my students using LyX for their organic chemistry lab
>> reports.  I use a pretty standard installation at home under Debian,
>> while most of them use Windows or Mac.  One student in particular
>> tried using an example file I posted for them, added material to it,
>> then ran into problems when trying to view a pdf (or export, etc).
>>
>> I had him send me both the original file and his file.  Both properly
>> process for me.  No one else has reported issues (yet) like this.  If
>> he generates a trivial file with a few words in it, no problem is
>> encountered.
>>
>> The wording of the error message is the following:
>>
>> \chemgreek_drop_symbols:
>>
>> The control sequence at the end of the top line
>>
>> of your error message was never \def'ed. If you have
>>
>> misspelled it (e.g., \hobx'), type I' and the correct
>>
>> spelling (e.g., I\hbox'). Otherwise just continue,
>>
>> and I'll forget about whatever was undefined.
>>
>> Is it possible that his installation of TexLive is not complete?  Or
>> is there something else I'm oblivious to which would explain this?
>>
> Maybe this:
> https://tex.stackexchange.com/questions/249002/error-with-chemgreek.
> It's got to be a difference in the LaTeX packages.
>
> Riki
>

Kenward

--
In a completely rational society, the best of us would aspire to be
_teachers_ and the rest of us would have to settle for something less,
because passing civilization along from one generation to the next
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could have.     - Lee Iacocca

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