Could not open NCS device

idata · ‎01-10-2019

I am using NCS2 on Ubuntu16.04 native, and I´ve already installed VINO environment. I tried make run in /examples/apps/hello_ncs_py, but it always gives me the error as below.

python3 hello_ncs.py;
D : [         0] ncDeviceCreate:307    ncDeviceCreate index 0
D : [         0] ncDeviceCreate:307    ncDeviceCreate index 1
D : [         0] ncDeviceOpen:501    File path /usr/local/lib/mvnc/MvNCAPI-ma2450.mvcmd
W : [         0] ncDeviceOpen:505    ncDeviceOpen() XLinkBootRemote returned error 3
Error - Could not open NCS device.

And if i tried make examples for all the examples, it always gives me the error as below.

Layer  inception_3b/1x1  forced to im2col_v2, because its output is used in concat
/usr/local/bin/ncsdk/Controllers/FileIO.py:65: UserWarning: You are using a large type. Consider reducing your data sizes for best performance
Traceback (most recent call last):
  File "/usr/local/bin/mvNCCompile", line 169, in <module>
    create_graph(args.network, args.image, args.inputnode, args.outputnode, args.outfile, args.nshaves, args.inputsize, args.weights, args.explicit_concat, args.ma2480, args.scheduler, args.new_parser, args)
  File "/usr/local/bin/mvNCCompile", line 155, in create_graph
    graph_file.generate_v2(args)
  File "/usr/local/bin/ncsdk/Models/Blob.py", line 211, in generate_v2
    with open(self.blob_name, 'wb') as f:
PermissionError: [Errno 13] Permission denied: 'graph'
Makefile:80: recipe for target 'compile' failed
make[4]: *** [compile] Error 1
make[4]: Leaving directory '/home/ubuntu/Downloads/ncsdk-2.05.00.02/examples/caffe/GoogLeNet'
cp: cannot create regular file './googlenet.graph': Permission denied
Makefile:9: recipe for target 'googlenet' failed
make[3]: *** [googlenet] Error 1
make[3]: Leaving directory '/home/ubuntu/Downloads/ncsdk-2.05.00.02/examples/apps/multistick_cpp'
Makefile:13: recipe for target 'multistick_cpp/.' failed
make[2]: *** [multistick_cpp/.] Error 2
make[2]: Leaving directory '/home/ubuntu/Downloads/ncsdk-2.05.00.02/examples/apps'
Makefile:12: recipe for target 'apps/.' failed
make[1]: *** [apps/.] Error 2
make[1]: Leaving directory '/home/ubuntu/Downloads/ncsdk-2.05.00.02/examples'
Makefile:57: recipe for target 'examples' failed
make: *** [examples] Error 2

Can anyone give me some advice about how I should fix it? Thanks.

idata · ‎01-10-2019

FYI, if I tried the procedure described in https://software.intel.com/en-us/neural-compute-stick/get-started, I used the following commands:

cd ~/intel/computer_vision_sdk/deployment_tools/demo
./demo_security_barrier_camera.sh -d MYRIAD

And the command runs successfully as below.

API version ............ 1.5 Build .................. 19154 Description ....... myriadPlugin [ INFO ] Loading network files for VehicleDetection [ INFO ] Batch size is forced to 1 [ INFO ] Checking Vehicle Detection inputs [ INFO ] Checking Vehicle Detection outputs [ INFO ] Loading Vehicle Detection model to the MYRIAD plugin [ INFO ] Loading network files for VehicleAttribs [ INFO ] Batch size is forced to 1 for Vehicle Attribs [ INFO ] Checking VehicleAttribs inputs [ INFO ] Checking Vehicle Attribs outputs [ INFO ] Loading Vehicle Attribs model to the MYRIAD plugin [ INFO ] Loading network files for Licence Plate Recognition (LPR) [ INFO ] Batch size is forced to 1 for LPR Network [ INFO ] Checking LPR Network inputs [ INFO ] Checking LPR Network outputs [ INFO ] Loading LPR model to the MYRIAD plugin [ INFO ] Start inference Avarage inference time: 80.2087 ms (12.4675 fps) Total execution time: 6976.94 [ INFO ] Execution successful

idata · ‎01-11-2019

Hi @BenjaminLiu

Do you also have the NCSDK installed on your computer? The first two errors you're getting are from using the NCS2 with the NCSDK. The NCS2 is _only _compatible with OpenVINO, not the NCSDK. But it looks like you did successfully install OpenVINO.

If you have any further questions about OpenVINO with the NCS2, please post them here to the Computer Vision forum.

Best regards,

Sahira