__pthread_tpp_change_priority: Assertion failed

[xlash123]

I've been getting this error when trying to run loadibec. I'm running Ubuntu 12.04 LTS (someone mentioned that this version fixed earlier issues, and it's done so for me) on a VM. I've been following the Wiki, and so far every step seems to have gone without errors, until this part. I have my iPod Touch 4G in recovery mode and the VM can see it. The program seems to be able to connect to it, but crashes before it has a chance to do anything. The following is the error code I received verbatum.

> ./loadibec ipt_4g_openiboot.bin
Loadibec 2.00.
Connecting to iDevice...
loadibec: tpp.c:63: __pthread_tpp_change_priority: Assertion `new_prio == -1 || (new_prio >= __sched_fifo_min_prio && new_prio <= __sched_fifo_max_prio)' failed.
Aborted (core dumped)

My best guess is I'm missing some dependency or maybe some error happened along the way that wasn't obvious. Any suggestions?