An unknown named entity (&ndash;) appears in the source text.

redefining command \AA 
An unknown named entity (&gt;) appears in the source text.
An unknown named entity (&pi;) appears in the source text.
An unknown named entity (&times;) appears in the source text.
An unknown named entity (&phi;) appears in the source text.
An unknown named entity (&rarr;) appears in the source text.
An unknown named entity (&zeta;) appears in the source text.

tut.tex is newer than tut.aux: Please rerun latex.

Substitution of arg to newlabelxx delayed.
