Need help for building

Hi all,

my last build was in August. Now I tried a new build, but it fails. I 
have started with
git pull -r

then
/opt/lo/bin/make clean

then
/opt/lo/bin/make

It gives the error
/usr/bin/cp: der Aufruf von stat für 
„C:/LO_buildSymbol/core/workdir/CustomTarget/postprocess/images/images_breeze.zip“ 
ist nicht möglich: No such file or directory

My current autogen.input is
--with-external-tar=/cygdrive/c/LO_buildSymbol/externalsrc
--with-junit=/cygdrive/c/LO_buildSymbol/junit-4.10.jar
--with-ant-home=/cygdrive/c/cygwin/ant195
--enable-pch
--disable-ccache
--enable-symbols
--with-help

What do I miss?

Kind regards
Regina