asus mount and pole are not visualising in gazebo

[jihoonl]

With the following error.

Error [Visual.cc:1697] Visual::InsertMesh no submeshes, this is an invalid mesh
Error [Visual.cc:418] Ogre Error:OGRE EXCEPTION(2:InvalidParametersException): Header chunk didn't match either endian: Corrupted stream? in Serializer::determineEndianness at /build/buildd/ogre-1.8-1.8.1+dfsg/OgreMain/src/OgreSerializer.cpp (line 89)
Error [Visual.cc:419] Unable to create a mesh from /home/jihoonl/research/ros/turtlebot/src/turtlebot/turtlebot_description/meshes/sensors/sensor_pole.dae
Error [Visual.cc:1697] Visual::InsertMesh no submeshes, this is an invalid mesh
Error [Visual.cc:418] Ogre Error:OGRE EXCEPTION(2:InvalidParametersException): Header chunk didn't match either endian: Corrupted stream? in Serializer::determineEndianness at /build/buildd/ogre-1.8-1.8.1+dfsg/OgreMain/src/OgreSerializer.cpp (line 89)
Error [Visual.cc:419] Unable to create a mesh from /home/jihoonl/research/ros/turtlebot/src/turtlebot/turtlebot_description/meshes/sensors/sensor_pole.dae
[ INFO] [1426482713.247649758, 1.030000000]: Kobuki(ns = //): <tf_prefix> = 
Dbg Plugin model name: mobile_base
[ INFO] [1426482713.247822892, 1.030000000]: Will publish tf. [mobile_base]
Error [Visual.cc:1697] Visual::InsertMesh no submeshes, this is an invalid mesh
Error [Visual.cc:418] Ogre Error:OGRE EXCEPTION(2:InvalidParametersException): Header chunk didn't match either endian: Corrupted stream? in Serializer::determineEndianness at /build/buildd/ogre-1.8-1.8.1+dfsg/OgreMain/src/OgreSerializer.cpp (line 89)
Error [Visual.cc:419] Unable to create a mesh from /home/jihoonl/research/ros/turtlebot/src/turtlebot/turtlebot_description/meshes/sensors/xtion_pro_stack.dae

It seems like FBX collada exported model, sensor_polo.dae and xtion_pro_stack.dae, are not loadable in gazebo. Others dae files are open collada model