Error when trying to run diagram module

[ntwrkguy]

python3 natlas-cli.py diagram -r 10.0.0.1 -o diagram.svg
natlas v0.12.1
Michael Laforest mjlaforest@gmail.com
Python 3.6.8

Expecting value: line 8 column 2 (char 127)

No other information is provided for the error

[sjbeskur]

I too had this same issue and after stepping through the code It turned out that my natlas.conf file had an error (trailing common in one of the arrays). Here is a copy of my natlas config for your referrence:

{ "snmp" : [ { "community":"public_ro", "ver":2 } ], "domains" : [ ], "discover" : [ "permit ip 192.168.88.0/24" ], "diagram" : { "node_text_size" : 10, "link_text_size" : 9, "title_text_size" : 15, "get_stack_members" : 0, "get_vss_members" : 0, "expand_stackwise" : 0, "expand_vss" : 1, "expand_lag" : 1, "group_vpc" : 0 } }

[mav51]

Thanks for the wonderful job, I have a problem with diagram module.
I get this error on every single IP address

Back filling node details...
:1: SyntaxWarning: 'float' object is not callable; perhaps you missed a comma?
:1: SyntaxWarning: 'float' object is not callable; perhaps you missed a comma?
"dot" with args ['-Tsvg', '/tmp/tmpeyo79kwj'] returned code: 1

stdout, stderr:
b''
b"Error: /tmp/tmpeyo79kwj: syntax error in line 24 near '>'\n"

Traceback (most recent call last):
File "natlas-cli.py", line 305, in
main(sys.argv[1:])
File "natlas-cli.py", line 96, in main
exec_mod(mod, argv[1:])
File "natlas-cli.py", line 167, in exec_mod
modret = module.entryfunc(natlas_obj, argv)
File "./modules/diagram.py", line 88, in mod_entry
if (opt_output != None): natlas_obj.write_diagram(opt_output, opt_title)
File "/home/kali/skyforce/pentest/scripts/cisco/natlas/natlas/natlas.py", line 125, in write_diagram
self.diagram.generate(output_file, diagram_title)
File "/home/kali/skyforce/pentest/scripts/cisco/natlas/natlas/output_diagram.py", line 108, in generate
output_func(f)
File "/usr/lib/python3/dist-packages/pydot.py", line 1736, in new_method
self.write(
File "/usr/lib/python3/dist-packages/pydot.py", line 1825, in write
s = self.create(prog, format, encoding=encoding)
File "/usr/lib/python3/dist-packages/pydot.py", line 1953, in create
assert process.returncode == 0, process.returncode
AssertionError: 1