I am using cadabra 2.1.7 in Debian GNU/Linux 8.10 (jessie).
While trying to use the 'complete' command I am getting an error:
"g" not registered.
I am basically trying to run the Schwarzschild Metric example given on the Cadabra website.
Also, I am not able to use mathematica or sympy despite having both of them installed.
Thanks.