Pytest error after modulus installation

I installed modulus dev version and using Python 3.9. Per documentation, post installation, I tried running Pytest under tests directory and got the following errors. ANy help to resolve this will be sincerely appreciated:

============================================================================== test session starts ==============================================================================
platform linux – Python 3.9.0, pytest-7.4.2, pluggy-1.3.0
rootdir: /home/user/git/nvidia-modulus/modulus/test
plugins: hydra-core-1.3.2
collected 416 items / 23 errors / 3 skipped

==================================================================================== ERRORS =====================================================================================

============================================================================ short test summary info ============================================================================
ERROR models/test_afno.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_dlwp.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_fno.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_from_checkpoint.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_from_torch.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_fully_connected.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_graph_partition.py
ERROR models/test_layers_activations.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_pix2pix.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_rnn.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/test_super_res_net.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/diffusion/test_dhariwal_unet.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/diffusion/test_song_unet.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/graphcast/test_concat_trick.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/graphcast/test_cugraphops.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/graphcast/test_graphcast.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/meshgraphnet/test_meshgraphnet.py - AttributeError: module ‘modulus’ has no attribute ‘Module’
ERROR models/meshgraphnet/test_meshgraphnet_snmg.py
ERROR utils/generative/test_ablation_sampler.py
ERROR utils/generative/test_format_time.py
ERROR utils/generative/test_parse_int_list.py
ERROR utils/generative/test_parse_time.py
ERROR utils/generative/test_tuple_product.py
!!! Interrupted: 23 errors during collection !!!
================================================================== 3 skipped, 7 warnings, 23 errors in 11.11s ===================================================================