Modulus example case (helmholtz): Value Error

I am running the /example/helmholtz/ case as described in the installation guide. The output/ folder is also created. however, I am getting an error as follows:

/examples/helmholtz# python3
[17:05:59] - JIT using the NVFuser TorchScript backend
[17:05:59] - JitManager: {‘_enabled’: True, ‘_arch_mode’: <JitArchMode.ONLY_ACTIVATION: 1>, ‘_use_nvfuser’: True, ‘_autograd_nodes’: False}
[17:05:59] - GraphManager: {‘_func_arch’: False, ‘_debug’: False, ‘_func_arch_allow_partial_hessian’: True}
Error executing job with overrides:
ValueError: could not convert string to float: ‘oid sha256:xxxx’

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File “”, line 72, in run
openfoam_var = csv_to_dict(to_absolute_path(“validation/helmholtz.csv”), mapping)
File “/usr/local/lib/python3.8/dist-packages/modulus-22.9-py3.8.egg/modulus/utils/io/”, line 33, in csv_to_dict
values = np.loadtxt(filename, skiprows=1, delimiter=delimiter, unpack=False)
File “/usr/local/lib/python3.8/dist-packages/numpy/lib/”, line 1338, in loadtxt
arr = _read(fname, dtype=dtype, comment=comment, delimiter=delimiter,
File “/usr/local/lib/python3.8/dist-packages/numpy/lib/”, line 999, in _read
arr = _load_from_filelike(
ValueError: could not convert string ‘oid sha256:xxxxxxxxxxxxx’ to float64 at row 0, column 1.

Set the environment variable HYDRA_FULL_ERROR=1 for a complete stack trace.

Hi @mitanshtrip

This is an issue with not having Git LFS installed properly. Please see the following post or the warning box in our install notes:

Let us know if your still having problems even with Git LFS installed. Thanks.