cls file missing (miktex install) > was wrongly Lyx and Happy New Year!

Wolfgang Engelmann engelmann at
Sat Dec 28 14:24:32 UTC 2019

Sorry, this letter went wrong


Am 28.12.19 um 15:20 schrieb Wolfgang Engelmann:
> Dear Anders and Tobe,
> I have forwarded your question to the lyx user group. You should not 
> install texlive if you used already miktex. What is missing is the cls 
> file for the Koma-script book. I think the list will help soon. I am 
> using TexLive and one can use tlmgr to load missing files. The cls 
> files tell lyx how to handle the document.
> Under this
> you find a shot of the menu you should get where you can select the 
> wanted cls file (i.e. sourcebook.cls).
> Wolfgang
> Am 28.12.19 um 15:05 schrieb Wolfgang Engelmann:
>> This is what my colleague got in trying to export a pdf file from a 
>> Koma-script book style:
>> But we receive the following message when starting lyx with the 
>> document file:
>> Document class "KOMA-Script-Book" needs a file that is not available 
>> at present. The document class can be used but the document can not 
>> be compiled or printed if "scrbook.cls" is not installed.
>> What do they miss? They are using windows.
>> Wolfgang

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