You are attempting to convert a Parquet file to a Delta Lake file.
The directory containing the Parquet file contains one or more subdirectories.
The conversion fails with the error message:
Expecting 0 partition column(s): , but found 1 partition column(s): [<column_name>] from parsing the file name: <path_to_the_file_location>;.
The conversion process is attempting to process the subdirectory as a partition. This causes the error message.