error in building gnuradio 3.8.1 error: cannot convert ‘const nanoseconds in ubuntu 20.04

[sp]

can anyone guide me on how can solve this error in building gnuradio 3.8.1
from the source.!!

error: cannot convert ‘const nanoseconds’ {aka ‘const
std::chrono::duration<long int, std::ratio<1, 1000000000> >’} to ‘const
nanoseconds&’ {aka ‘const boost::chrono::duration<long int, boost::ratio<1,
1000000000> >&’}