Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

KeyError: 'bpy_prop_collection[key]: key "Group Input" not found'

See original GitHub issue

Hi, I’m trying “Download from the PDB” and “Load MD Trajectory File” according to your document. However, I got the same error in both cases. Thanks!

Python: Traceback (most recent call last):
  File "C:\Users\ryohei.yamaguchi\AppData\Roaming\Blender Foundation\Blender\3.1\scripts\addons\molecular_nodes\__init__.py", line 2471, in invoke
    return self.execute(context)
  File "C:\Users\ryohei.yamaguchi\AppData\Roaming\Blender Foundation\Blender\3.1\scripts\addons\molecular_nodes\__init__.py", line 2458, in execute
    sna_func_import_structure_EE5B6(
  File "C:\Users\ryohei.yamaguchi\AppData\Roaming\Blender Foundation\Blender\3.1\scripts\addons\molecular_nodes\__init__.py", line 1583, in sna_func_import_structure_EE5B6
    sna_setup_node_tree_272D6(output_name, unique_chains, base_model,
  File "C:\Users\ryohei.yamaguchi\AppData\Roaming\Blender Foundation\Blender\3.1\scripts\addons\molecular_nodes\__init__.py", line 2599, in sna_setup_node_tree_272D6
    create_starting_node_tree(collection_of_properties=col_properties,
  File "C:\Users\ryohei.yamaguchi\AppData\Roaming\Blender Foundation\Blender\3.1\scripts\addons\molecular_nodes\__init__.py", line 2523, in create_starting_node_tree
    node_input = node_mod.node_group.nodes['Group Input']
KeyError: 'bpy_prop_collection[key]: key "Group Input" not found'

location: <unknown location>:-1