Body does not have attribute 'age'

[lauren-morley]

Hello! I have just started using VPLanet to work on some research, and I can't seem to get any example running. I began with the introduction VenusWaterLoss example. The simulation seems to run fine, but when I try to plot it, I get a string of errors that I cannot seem to figure out. This error has occurred multiple times when I run the 'python makeplot.py' command. I have tried running the simulation on both a linux system and a macos system, as I originally thought maybe it was an issue with my linux system. If anyone has any ideas on how I can fix this please let me know! It may just be something incredibly simple that I am missing. My colleague has run the same simulation on a macos system and seemed to have no issues, so I am wondering if it is an error with my computer? The error output is attached below! I did not make any changes to the input file before running the simulation.

ERROR:Error processing line 106 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 109 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 162 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 165 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 218 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 221 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 320 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 323 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 376 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 379 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 432 of solarsystem.log: Cannot interpret unit (null).
ERROR:Error processing line 435 of solarsystem.log: Cannot interpret unit (null).
Traceback (most recent call last):
File "/home/user/Downloads/vplanet-main/examples/VenusWaterLoss/makeplot.py", line 22, in
time = output.sun.Age
^^^^^^^^^^^^^^
AttributeError: 'Body' object has no attribute 'Age'

[solontoi]

Having the same issue here - stripping the Venus Water Loss example down to the version in the Quickstart produces a similar block of errors when trying to plot the results of the simulation with VPLOT:

ERROR:Error processing line 104 of solarsystem.log: Cannot interpret unit `(null)`.
ERROR:Error processing line 107 of solarsystem.log: Cannot interpret unit `(null)`.
ERROR:Error processing line 206 of solarsystem.log: Cannot interpret unit `(null)`.
ERROR:Error processing line 209 of solarsystem.log: Cannot interpret unit `(null)`.
Traceback (most recent call last):
  File "/home/solontoi/anaconda3/envs/vplanet/bin/vplot", line 8, in <module>
    sys.exit(_entry_point())
             ~~~~~~~~~~~~^^
  File "/home/solontoi/anaconda3/envs/vplanet/lib/python3.13/site-packages/vplot/command_line.py", line 37, in _entry_point
    auto_plot(**args.__dict__)
    ~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/home/solontoi/anaconda3/envs/vplanet/lib/python3.13/site-packages/vplot/auto_plot.py", line 90, in auto_plot
    raise RuntimeError("No `Time` array found for any of the bodies.")
RuntimeError: No `Time` array found for any of the bodies.

Going into the solarsystem.log file and manually removing the [(null)] unit labels (turning them into just [] for no units) and the running `VPLOT produces removes those errors but the rest remain:

Traceback (most recent call last):
  File "/home/solontoi/anaconda3/envs/vplanet/bin/vplot", line 8, in <module>
    sys.exit(_entry_point())
             ~~~~~~~~~~~~^^
  File "/home/solontoi/anaconda3/envs/vplanet/lib/python3.13/site-packages/vplot/command_line.py", line 37, in _entry_point
    auto_plot(**args.__dict__)
    ~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/home/solontoi/anaconda3/envs/vplanet/lib/python3.13/site-packages/vplot/auto_plot.py", line 90, in auto_plot
    raise RuntimeError("No `Time` array found for any of the bodies.")
RuntimeError: No `Time` array found for any of the bodies.