1.
In my AMS run using ADE amsstate in Xcelium I get the above warning.
The warning is saying that GND connection (which is the top level terminal) cannot be connected to the a node inside the hierarchy.
I tried searching for the warning message but found no documentation around it.
2.
How do we find information about Spectre warning. The reference document of Spectre seems to mention nothing about it.
3.
Also is there a command line access to spectre to query about warnings/error messages?