libfontconfig.so.1: cannot open shared object file: No such file or directory

[onknows]

When I use container I only get error message. No pdf is generated

/usr/local/bundle/gems/nokogiri-1.6.8.1/lib/nokogiri/html/document.rb:164: warning: constant ::Fixnum is deprecated
/usr/local/bundle/gems/wkhtmltopdf-binary-0.9.9.3/bin/wkhtmltopdf_linux_x64: error while loading shared libraries: libfontconfig.so.1: cannot open shared object file: No such file or directory

[ovitente]

I have the same.
My docker command is
docker run -v /home/det/unsted/:/tmp/gimli walle/gimli -f /tmp/gimli/about.md -o /tmp/gimli
And outpout the same too

/usr/local/bundle/gems/nokogiri-1.6.8.1/lib/nokogiri/html/document.rb:164: warning: constant ::Fixnum is deprecated
/usr/local/bundle/gems/wkhtmltopdf-binary-0.9.9.3/bin/wkhtmltopdf_linux_x64: error while loading shared libraries: libfontconfig.so.1: cannot open shared object file: No such file or directory