Compilation Errors in Example 03

[Rholais]

line 154: Undefined control sequence. \end{frame}
line 154: Undefined control sequence. \end{frame}
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing math shift
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing superscript
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing math shift
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing math shift
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing superscript
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing math shift
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing math shift
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing superscript
line 17: Token not allowed in a PDF string (PDFDocEncoding):(hyperref) removing math shift
line 25: Overfull \hbox (50.59032pt too wide) detected
line 154: Citation Paivi on page 1 undefined
line 154: Citation Paivi on page 1 undefined
line 154: Citation Oegren2008 on page 1 undefined
line 154: Citation Oegren2008 on page 1 undefined
line 154: Overfull \hbox (15.75464pt too wide) in paragraph
: No file poster.bbl.
: Overfull \hbox (50.59032pt too wide) has occurred while \output is active
: Overfull \hbox (50.59032pt too wide) has occurred while \output is active
: There were undefined references.