Qt cannot bring up application on QNX side

Hi everyone,
　I recently built Qt4.8 on Ubuntu virtual machine for x86 QNX6.5.0 virtual machine. When I created an application, built, deployed and ran it, the application did not run on the QNX side. But when I ran the deploy application on the QNX side, it did run normally. Is there something missing of my qt configuration?
　Could anyone shed some light on this issue? Thank you in advance!