Pipeline fails with: File "frozen extraction.model_tag.train"

Pipeline fails with:

File "<frozen extraction.model_tag.train>", line 140, in train
File "<frozen extraction.model_tag.dataset.dataset>", line 139, in init
File "<frozen extraction.model_tag.dataset.dataset>", line 26, in init
File "<frozen extraction.model_tag.preprocess>", line 527, in preprocess_data
AssertionError: Training and / or test set is empty, verify that training / test split is correctly set in split.csv

Issue Description

Pipeline fails with:

File "<frozen extraction.model_tag.train>", line 140, in train
File "<frozen extraction.model_tag.dataset.dataset>", line 139, in __init__
File "<frozen extraction.model_tag.dataset.dataset>", line 26, in __init__
File "<frozen extraction.model_tag.preprocess>", line 527, in preprocess_data
AssertionError: Training and / or test set is empty, verify that training / test split is correctly set in split.csv

Diagnosing/Resolving

  1. Look at the dataset and check to see if there are any files longer than 260.
  2. If there is a file name that is longer than 260, the file name needs to be reduced and any references to it need to be changed to the updated name.
  3. Other causes could be that the wrong folder was selected for the pipeline.
  4. If the above does not resolve the issue, raise a ticket with UiPath.