[developers] Error when training generation model

[Dominikus Wetzel]

Hi all,

I want to train a generation reranking model following the steps 
described here: http://moin.delph-in.net/LogonModeling "Generation model 
from non-treebanked underspecified MRSs". When performing the feature 
caching step (./load --binary fc.g.lisp), the process is terminated with 
the following error message:

Error: about to bind C to NIL, which is not of type CHARACTER.
   [condition type: TYPE-ERROR]

Thanks very much in advance for any help.
Best wishes,
Dominikus



This is some relevant context output:

[...]

TSNLP(3): ; Loading /home/dwetzel/opt/logon/lingo/redwoods/fc.g.lisp
;   Loading /home/dwetzel/opt/logon/lingo/redwoods/generation.lisp
install-gc-strategy(): disabling tenure; global garbage collection ...
[15:37:05] gc-after-hook(): {L#37 N=784 O=46M E=74%} [S=2.3G R=694M].
78120432 bytes have been tenured, next gc will be global.
See the documentation for variable EXCL:*GLOBAL-GC-BEHAVIOR* for more 
information.
[15:37:06] gc-after-hook(): {G#37 N=1008 O=0 E=0%} [S=2.3G R=694M].
[15:37:06] gc-after-hook(): {L#38 N=4.4K O=0 E=0%} [S=2.3G R=694M].
[15:37:06] gc-after-hook(): {L#39 N=4.4K O=0 E=0%} [S=2.3G R=694M].
  done.
[15:37:06] operate-on-profiles(): reading `erg/1010/rtc006/11-10-10/lkb'
[15:37:06] operate-on-profiles(): running `erg/1010/rtc006/11-10-10/lkb' 
[30009000 - 30009200|.
[15:37:30] open-fc(): new BDB `fc.bdb'.
Error: about to bind C to NIL, which is not of type CHARACTER.
   [condition type: TYPE-ERROR]

Restart actions (select using :continue):
  0: store the value anyway.
  1: retry the load of fc.g.lisp
  2: skip loading fc.g.lisp
  3: recompile /home/dwetzel/opt/logon/lingo/redwoods/fc.g.lisp
  4: Return to Top Level (an "abort" restart).
  5: Abort entirely from this (lisp) process.
[1] TSNLP(4): :pop
TSNLP(4): EOF
Really exit lisp [n]?
close-connection(): `erg/1010/rtc006/11-10-10/lkb' expiry.