PeopleTracking problem

[robustlucy]

Hi, I tried to make&run the Peopletracking project on ubuntu16.04 VoxelSDK 0.6.11 and Qt5.5.1, it appears the message below:

Profile MetrilusLongRange found.
_dealiasedPhaseMask = 2, _dealiasedPhaseMaskInPhaseOffset = 4
QObject::startTimer: Timers cannot be started from another thread
WARNING: USBBulkStreamer: Dropping a frame because of slow forward pipeline.
WARNING: USBBulkStreamer: Dropping a frame because of slow forward pipeline.
WARNING: USBBulkStreamer: Dropping a frame because of slow forward pipeline.
WARNING: USBBulkStreamer: Dropping a frame because of slow forward pipeline.
WARNING: USBBulkStreamer: Dropping a frame because of slow forward pipeline.
WARNING: USBBulkStreamer: Dropping a frame because of slow forward pipeline.
...

I do not use VM. is it because of the wrong version of QT? many thanks and thanks again with your great work.