...and I think found atleast some of my problems. gr-perf-monitorx will exit with the same error message no matter what the exception is. I changed it to print out the Exception. It looks like a number of additional libraries are required. To use it I needed to install: apt-get install libgraphviz-dev apt-get install graphviz pip3 install pygraphviz
It also looks like the NetworkX library may have been updated because it is complaining about some parameters. I will try to sort through this and submit a PR.
