/manual/ for apache2 point to a wrong directory. In my installation it point to /usr/share/doc/apache-2.0.50 instead of apache-2.0.51-r1 I had to fix the 00_apache_manual.conf in /etc/apache2/conf/modules.d Reproducible: Always Steps to Reproduce: 1. 2. 3.
*** This bug has been marked as a duplicate of 63405 ***
Closing.