Hello, Trying the tutorial three - python in gnu radio and the 'if_else' mod file. I get this run-time error even with the tutorial/solutions file so it might be a build thing.
Basically when it runs with the added if val == 1: block it raises an Attribute error top_block_sptr has no attribute named analog_sig _x1_source block - (sorry not correctly copied but you get the idea hopefully) - in other words it does not recognise the analog signal source that you have and that you are trying to modify the freq and/or amplitude of under control of the simple if/else using the probe_signal variable as outlined in the tutorial. Is there something missing in the build or is it some error in the file/instructions in the tutorial? Thanks Jacqueline
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