SPICE (NOLOADEDFILES)

[liuli217217]

Describe the bug
I have followed the instructions to install Basilisk on Windows 10/Windows 11/Ubuntu 20.04, and I can successfully run multiple examples including scenarioBasicOrbit.py and scenarioGroundLocationImaging.py. However, when I try to run scenarioGroundDownlink.py, it always prompts me with the error message: '
Toolkit version: N0065
SPICE (NOLOADEDFILES) -- At least one SPK file needs to be loaded by SPKLEF before beginning a search.
A traceback follows. The name of the highest level module is first.spkezr_c --> SPKEZR --> SPKEZ --> SPKGEO --> SPKSFS.'

Could you please help me understand the reason for this and how to resolve it? Thank you."

To reproduce
Steps to reproduce the behavior:

1. Add module '...'
2. Simulate with the configuration '....'
3. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Desktop (please complete the following information):

• OS: [e.g. Macos]
• Version [e.g. 12.6.1]
• Python version [e.g. 3.9.15]

Additional context
Add any other context about the problem or potential solution paths here.

[schaubh]

This means the JPL Spice files were not installed. Be sure to install git-lfs before cloning the repo to ensure the spice file is also pulled. See http://hanspeterschaub.info/basilisk/Install/pullCloneBSK.html.