code:

C:\texmf\tex\latex\beamer\beamerbasenavigation.sty
Package: beamerbasenavigation 2004/01/10 ver 1.20)
! Undefined control sequence.
\insertsectionhead ->\IeC 
                          {\CYRP }\IeC {\cyre }\IeC {\cyrr }\IeC {\cyrv }\Ie...
l.363 }
 ? 
! LaTeX Error: Command \CYRP unavailable in encoding OT1.
See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                
 

code:
\usepackage[german,english,...,russian]{babel}

code:

\documentclass[unicode]{beamer}
\usepackage[cp1251]{inputenc}
\usepackage[russian]{babel}
 

code:
\select@language {russian}

Quote:

---

До создания этого файла дело не доходит

---

code:
\insertsectionhead ->\IeC 
                          {\CYRP }\IeC {\cyre }\IeC {\cyrr }\IeC {\cyrv }\Ie...
l.363 }