ImportError: cannot import name '_is_local_file_protocol' from 'pytorch_lightning.callbacks.model_checkpoint'
I had the same issue and updated to `pytorch-lightning=2.2.1` and it worked.
Somehow, when I installed everything from scratch, using `pip install nemo_toolkit['all']`, it did not install the right pytorch-lightning. If you look at the requirements files, it says it requires at least 2.2.1:
```
cat requirements/requirements_lightning.txt
cloudpickle
fiddle
hydra-core>1.3,<=1.3.2
omegaconf<=2.3
pytorch-lightning>=2.2.1
torchmetrics>=0.11.0
transformers>=4.36.0
wandb
webdataset>=0.2.86
``` This issue is stale because it has been open for 30 days with no activity. Remove stale label or comment or this will be closed in 7 days. This issue was closed because it has been inactive for 7 days since being marked as stale.
When I run
`from nemo.collections.tts.models.base import SpectrogramGenerator`
I get this error:
`Traceback (most recent call last):
  File "/home/saeed/Codes/NeMo/tutorials/tts/Inference_ModelSelect.py", line 3, in <module>
    from nemo.collections.tts.models.base import SpectrogramGenerator
  File "/home/saeed/Codes/NeMo/nemo/collections/tts/__init__.py", line 15, in <module>
    from nemo.collections.tts import data, losses, models, modules
  File "/home/saeed/Codes/NeMo/nemo/collections/tts/models/__init__.py", line 16, in <module>
    from nemo.collections.tts.models.audio_codec import AudioCodecModel
  File "/home/saeed/Codes/NeMo/nemo/collections/tts/models/audio_codec.py", line 27, in <module>
    from nemo.collections.tts.losses.audio_codec_loss import (
  File "/home/saeed/Codes/NeMo/nemo/collections/tts/losses/audio_codec_loss.py", line 21, in <module>
    from nemo.collections.asr.parts.preprocessing.features import FilterbankFeatures
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/__init__.py", line 15, in <module>
    from nemo.collections.asr import data, losses, models, modules
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/models/__init__.py", line 15, in <module>
    from nemo.collections.asr.models.aed_multitask_models import EncDecMultiTaskModel
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/models/aed_multitask_models.py", line 29, in <module>
    from nemo.collections.asr.metrics import BLEU, WER
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/metrics/__init__.py", line 15, in <module>
    from nemo.collections.asr.metrics.bleu import BLEU
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/metrics/bleu.py", line 22, in <module>
    from nemo.collections.asr.parts.submodules.multitask_decoding import AbstractMultiTaskDecoding
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/parts/submodules/multitask_decoding.py", line 23, in <module>
    from nemo.collections.asr.parts.submodules.multitask_beam_decoding import (
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/parts/submodules/multitask_beam_decoding.py", line 21, in <module>
    from nemo.collections.asr.modules.transformer import BeamSearchSequenceGenerator
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/modules/__init__.py", line 15, in <module>
    from nemo.collections.asr.modules.audio_modules import (
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/modules/audio_modules.py", line 21, in <module>
    from nemo.collections.asr.modules.conformer_encoder import ConformerEncoder
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/modules/conformer_encoder.py", line 26, in <module>
    from nemo.collections.asr.models.configs import CacheAwareStreamingConfig
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/models/configs/__init__.py", line 15, in <module>
    from nemo.collections.asr.models.configs.asr_models_config import (
  File "/home/saeed/Codes/NeMo/nemo/collections/asr/models/configs/asr_models_config.py", line 27, in <module>
    from nemo.core.config import modelPT as model_cfg
  File "/home/saeed/Codes/NeMo/nemo/core/config/modelPT.py", line 22, in <module>
    from nemo.utils import exp_manager
  File "/home/saeed/Codes/NeMo/nemo/utils/exp_manager.py", line 43, in <module>
    from nemo.utils.callbacks import NeMoModelCheckpoint, PreemptionCallback
  File "/home/saeed/Codes/NeMo/nemo/utils/callbacks/__init__.py", line 16, in <module>
    from nemo.utils.callbacks.nemo_model_checkpoint import NeMoModelCheckpoint
  File "/home/saeed/Codes/NeMo/nemo/utils/callbacks/nemo_model_checkpoint.py", line 24, in <module>
    from pytorch_lightning.callbacks.model_checkpoint import ModelCheckpoint, _is_local_file_protocol
ImportError: cannot import name '_is_local_file_protocol' from 'pytorch_lightning.callbacks.model_checkpoint' `

I also can't find a function or variable named `_is_local_file_protocol` in the 'pytorch_lightning.callbacks.model_checkpoint'.

**Environment overview**

I have used a python virtual environment and installed the requirements with these commands:
`
apt-get update && apt-get install -y libsndfile1 ffmpeg
pip install Cython
pip install nemo_toolkit['tts']
`

**Environment details**

My pytorch-lightning version is 1.4.0
