Hi Users,

When I try to run my flow graph I have this error :

from .blocks_python import *
ImportError: 
/usr/local/lib/python3/dist-packages/gnuradio/blocks/-blocks_python.cpython-38-x86_64-linux-gnu.so
 : undefined symbol: 
_ZN2gr6blocks12wavfile_sink4makeEPKcijNS0_16wavfile_format_tENS-0_19wavfile_subformat_tEb

Someone has solutions for resolve this problem please ?
I work with UHD4.0 and gnuradio3.9

Thanks.

Best regards.
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