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--></style></head><body lang=FR-CH link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>The command : \documentclass{aa} delivers the message : file ‘aa.cls’ not found. But I can open the aa.cls file on the display of TeXstudio. How can I get the above TeXstudio command to find the aa.cls file ? </p><p class=MsoNormal>Best regards</p><p class=MsoNormal>Bernard Fischli</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>----- configuration info -----</p><p class=MsoNormal>TeXworks version : 0.6.5r.649699a0</p><p class=MsoNormal>MiKTeX version : MiKTeX 21.2</p><p class=MsoNormal>Install location : C:/Program Files/MiKTeX 2.9/miktex/bin/x64/miktex-texworks.exe</p><p class=MsoNormal>Library path : C:/Users/abfis/AppData/Local/MiKTeX/2.9/TeXworks/0.6\</p><p class=MsoNormal>pdfTeX location : C:/Program Files/MiKTeX 2.9/miktex/bin/x64/pdftex.exe</p><p class=MsoNormal>Operating system : Windows 10 Home, 64-bit, build 19044</p><p class=MsoNormal>Qt version : 5.15.2 (build) / 5.15.0 (runtime)</p><p class=MsoNormal>------------------------------</p><p class=MsoNormal>Envoyé à partir de <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Courrier</a> pour Windows</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>