TensorRT sample trtexec error

When I ./trtexec --deploy=/home/nvidia/tensorrt/data/AlexNet/alexnet_noprob.prototxt --output=fc8 --fp16 --useDLA=1
It has this message “Parameter check failed at: …/builder/builder.cpp::setDefaultDeviceType::226, condition: mHwContext.hasDLA && static_cast(deviceType) <= mHwContext.nbDLAEngines”

Does this look correct?

Hello, can you provide details on the platforms you are using?

Linux distro and version
GPU type
nvidia driver version
CUDA version
CUDNN version
Python version [if using python]
Tensorflow version
TensorRT version
If Jetson (hw version and jetpack version)

Also, /home/nvidia/tensorrt/data/AlexNet/alexnet_noprob.prototxt is part of what package?