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Make the examples Error! on NCS2 - [Error 7] Toolkit Error: USB Failure. Code: Error opening device

I setup my SDK env follow https://developer.movidius.com/start on my device NCS2.
I got several errors when I'm doing "make examples".

****** WARNING: No Weights found. using filler weights ******
Fusing Pad and Convolution2D
Fusing BatchNorm and Scale after Convolution
Replacing BN with Bias&Scale
Fusing Permute and Flatten
Fusing Eltwise and Relu
Eliminate layers that have been parsed as NoOp
Evaluating input and weigths for each hw layer
--------------------------------------
----------------------
----------------------
#Network Input tensors ['data#24']
#Network Output tensors ['prob#38']
Blob generated
W: [         0] ncDeviceOpen:527    ncDeviceOpen() XLinkBootRemote returned error 3

[Error 7] Toolkit Error: USB Failure. Code: Error opening device
Makefile:64: recipe for target 'profile' failed
make[2]: *** [profile] Error 255
make[2]: Leaving directory '/home/nicky/ncsdk/examples/caffe/AlexNet'
Makefile:12: recipe for target 'AlexNet' failed
make[1]: *** [AlexNet] Error 2
make[1]: Leaving directory '/home/nicky/ncsdk/examples/caffe'
Makefile:12: recipe for target 'caffe/.' failed
make: *** [caffe/.] Error 2

I have tested in both NCSDK1 and NCSDK2, not work.
Running the hello-ncs.py in NCSDK2:

W: [         0] ncDeviceOpen:527   ncDeviceOpen() XLinkBootRemote returned error 3
Error - Could not open NCS device.

Running the hello-ncs.py in NCSDK1:
Error - no NCS devices detected, verify an NCS device is connected.

My system in VM is ubuntu 16.04 desktop,
I have tested in both Parallels Desktop 14.01 and VIrualBox 5.2.22,the host OS is macOS Mojave 10.14.1.

What shall I do? Is my device is broken?

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