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I am trying to use DAB+FM+DVB-T dongle in gnuradio-companion installed with latest pre-built package on Windows 10 OS. But, it is throwing error as follows:

QUOTE

Generating: 'C:\\Users\\vsrks_000\\Documents\\top_block.py'

Executing: C:\GNURadio-3.7\gr-python27\python.exe -u C:\Users\vsrks_000\Documents\top_block.py

Win32; Microsoft Visual C++ version 14.0; Boost_106000; UHD_003.010.001.001-0-unknown

gr-osmosdr ae686c46 (0.1.5git) gnuradio 3.7.11
built-in source types: file osmosdr fcd rtl rtl_tcp uhd hackrf bladerf airspy redpitaya
Using device #0 Generic RTL2832U OEM
usb_open error -12

FATAL: Failed to open rtlsdr device.

Trying to fill up 1 missing channel(s) with null source(s).
This is being done to prevent the application from crashing
due to gnuradio bug #528.

gr::pagesize: no info; setting pagesize = 4096

UNQUOTE

Can you please suggest a solution.