cactus2hal-error

[tsackton@bioinf02 newRatite]$ cat cactus2hal.log 

real	32m6.430s
user	31m7.563s
sys	0m54.729s
hal exception caught: Fatal Tree error.  converter does not support adding more than one non-leaf:birdAnc06

real	7m33.713s
user	7m11.973s
sys	0m17.987s
rm -f newRatiteAlign.hal
time halAppendCactusSubtree '/scratch1/tsackton/merged_aligns/ratiteDir/progressiveAlignment/Anc03/Anc03_hal.c2h' '/scratch1/tsackton/merged_aligns/ratiteDir/progressiveAlignment/Anc03/Anc03_hal.fa' '(birdAnc05:0.0575233,birdAnc06:0.0677528,chrPic:0.418413,allMis:0.4696778,anoCar:1.1811839)birdAnc;' 'newRatiteAlign.hal' --outgroups chrPic,allMis,anoCar
time halAppendCactusSubtree '/scratch1/tsackton/merged_aligns/ratiteDir/progressiveAlignment/Anc05/Anc05_hal.c2h' '/scratch1/tsackton/merged_aligns/ratiteDir/progressiveAlignment/Anc05/Anc05_hal.fa' '(birdAnc07:0.0409259,birdAnc08:0.041184,birdAnc06:0.1252761,birdAnc09:0.1400447,birdAnc15:0.14154608)birdAnc05;' 'newRatiteAlign.hal' --outgroups Anc06,Anc09,Anc15
Traceback (most recent call last):
  File "/n/home12/tsackton/sw/progs/progressiveCactus/submodules/cactus2hal/bin/cactus2hal.py", line 125, in <module>
    main();
  File "/n/home12/tsackton/sw/progs/progressiveCactus/submodules/cactus2hal/bin/cactus2hal.py", line 116, in main
    system(cmdline)
  File "/n/home12/tsackton/sw/progs/progressiveCactus/submodules/sonLib/bioio.py", line 185, in system
    raise RuntimeError("Command: %s exited with non-zero status %i" % (command, sts))
RuntimeError: Command: time halAppendCactusSubtree '/scratch1/tsackton/merged_aligns/ratiteDir/progressiveAlignment/Anc05/Anc05_hal.c2h' '/scratch1/tsackton/merged_aligns/ratiteDir/progressiveAlignment/Anc05/Anc05_hal.fa' '(birdAnc07:0.0409259,birdAnc08:0.041184,birdAnc06:0.1252761,birdAnc09:0.1400447,birdAnc15:0.14154608)birdAnc05;' 'newRatiteAlign.hal' --outgroups Anc06,Anc09,Anc15 exited with non-zero status 1