If you have any problems building or running Sage, please take a look at the Installation FAQ in the Sage Release Tour corresponding to the version that you are installing. It may offer version-specific installation help that has become available after the release was made and is therefore not covered by this manual.
Also please do not hesitate to ask for help in the SageMath forum or the sage-support mailing list at https://groups.google.com/forum/#!forum/sage-support.
Also note the following. Each separate component of Sage is
contained in an SPKG; these are stored in
build/pkgs/. As each one
is built, a build log is stored in
logs/pkgs/, so you can browse these
to find error messages. If an SPKG fails to build, the whole build
process will stop soon after, so check the most recent log files
first, or run:
grep -li "^Error" logs/pkgs/*
from the top-level Sage directory to find log files with error
messages in them. Send the file
config.log as well as the
log file(s) of the packages that have failed to build
in their entirety to the sage-support mailing list
at https://groups.google.com/group/sage-support; probably someone
there will have some helpful suggestions.