qt-enterprise-linux-x64-5.4.0-beta_2014-10-08_02-04-00-48.run: Warnings from multimedia/audioengine/qml/audioengine.qml example

default openal device =  OpenAL Soft
device list:
     OpenAL Soft
add QDeclarativeAudioCategory[ "sfx" ]
Unknown child type for AudioEngine!
add QDeclarativeAudioCategory[ "music" ]
Unknown child type for AudioEngine!
add AttenuationModel[ "default" ]
add AttenuationModel[ "shipengine" ]
add QDeclarativeAudioSample[ "fire" ]
add QDeclarativeAudioSample[ "explosion" ]
add QDeclarativeAudioSample[ "lava" ]
add QDeclarativeAudioSample[ "water" ]
add QDeclarativeSound[ "shipengine" ]
add QDeclarativeSound[ "effects" ]
QDeclarativeAudioListener::setDirection
QDeclarativeAudioListener::setVelocity
QDeclarativeAudioListener::setPosition
QDeclarativeAudioListener::setUp
QDeclarativeSoundInstance::ctor()
QDeclarativeSoundInstance::setSound( "shipengine" )
QDeclarativeSoundInstance::setEngine( QDeclarativeAudioEngine(0x1ef6e80) )
QDeclarativeAudioListener::setPosition
AudioEngine begin initialization
creating default category
init samples 4
creating new StaticSoundBufferOpenAL
creating new StaticSoundBufferOpenAL
creating new StaticSoundBufferOpenAL
creating new StaticSoundBufferOpenAL
init sounds 2
AudioEngine ready.
QDeclarativeSoundInstance::engineComplete()
QDeclarativeSoundInstance::setSound( "shipengine" )
SoundInstance switch sound from [ "" ] to [ "shipengine" ]
QDeclarativeSoundInstance::stop()
creating new QSoundInstance
QSoundInstance::bindSoundDescription QDeclarativeSound(0x1f055e0)
QAudioEnginePrivate::createSoundSource()
creating new QSoundSourcePrivate
QSoundInstance::prepareNewVariation()
QSoundInstance: generate new play variation [old: -1 , new: 0 - "fire" ]
QSoundInstance::updateVariationParameters 1 0.8814 true
QDeclarativeSoundInstance::play()
QSoundInstancePrivate::play()
file:///opt/Qt/Qt54EN48/Examples/Qt-5.4/multimedia/audioengine/qml/audioengine.qml:114:19: Unable to assign double to QVector3D
loading [  QUrl( "file:///opt/Qt/Qt54EN48/Examples/Qt-5.4/multimedia/audioengine/qml/content/fire-03-loop.wav" )  ] failed
QDeclarativeAudioEngine::dtor active =  1 pool =  0
QSoundInstance::dtor()
QAudioEnginePrivate: recycle sound buffer
recycle soundInstance QSoundSourcePrivate(0x1f73570)
for pool
QAudioEngine::dtor
QAudioEnginePrivate::dtor
QSoundSourcePrivate::release
The process crashed.
WARNING: Launcher failed for /opt/Qt/Qt54EN48/Examples/Qt-5.4/multimedia/audioengine/qml at