No error message for unrecognized command line arguments

[cifkao]

🐛 Bug

LightningCLI provides no useful error message when an unrecognized commannd line argument is passed.

To Reproduce

Boring model

Expected behavior

Should display an error message saying which argument is unrecognized.

Environment

• CUDA:
  • GPU:
    • Tesla K80
  • available: True
  • version: 11.1
• Packages:
  • numpy: 1.21.5
  • pyTorch_debug: False
  • pyTorch_version: 1.10.0+cu111
  • pytorch-lightning: 1.5.10
  • tqdm: 4.63.0
• System:
  • OS: Linux
  • architecture:
    • 64bit
  • processor: x86_64
  • python: 3.7.12
  • version: #1 SMP Tue Dec 7 09:58:10 PST 2021

cc @carmocca @mauvilsa

[mauvilsa]

This seems to be a bug in jsonargparse. Could be a regression introduced in a recent release.

[mauvilsa]

Fixed in commit omni-us/jsonargparse@1dac66a. Will be included in the next release of jsonargparse.

[mauvilsa]

The fix is included in jsonargparse v4.4.0 which has just been released.