Hi all, I'm using GRC and the simple flow graph(1) at receiver is as follows:
Usrp source---->qam demod---->file sink It works fine at first. However, when I tried to execute another similar flow graph(2) that was built before UPDATING GNURADIO from 3.5.0 to 3.6.0. an error occurs: Generating:"/home/azalea/exp/top_block.py" executing:"/home/azalea/exp/top_block.py" File :"/home/azalea/exp/top_block.py", line 79 Self.digital_qam_demod_0=-----------> Syntax error: invalid syntax (I looked up the python file, line 79 and line 80 are: Self.digital_qam_demod_0=-----------> Cannot find 'gray_coded': digital.qam.qam_demod( ) Then, I return to the mentioned flow graph(1), same error again. I also tried to start a new flow graph or make/make install gnuradio, but in vain. I'm just confused. The flow graph(1) worked well even after updating gnuradio. After that and before the error I didn't remove or modify any module in gnuradio. Thanks a lot! Best, Jia
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