I've just got the same error. It can be solved by adding one line to
your nsd.tcl file.
#
# Tcl Configuration
#
ns_section ns/server/${server}/tcl
ns_param Library /web/${server}/tcl
ns_param autoclose on
ns_param debug false
# ----> Add this line pointing to your aolserver tcl-modules
# directory
ns_param SharedLibrary /usr/local/aolserver/modules/tcl
The parameter SharedLibrary
used to appear in
openacs-3.2.5 sample nsd.tcl. Maybe the sample openacs-4-nsd.txt in
file-storage should be updated or is that an effect of the new
bootstrap?