When we pass schema as a json, getting the error

[prabha1331]

I am trying to use the this library for converting csv to nested json. I am getting the below error
"line 39, in populate_structure_with_data
key_path = mapping[column_name]
KeyError: 'studentid'"
when i try the script with example_a.csv its working good. i am not sure about whats going on

below is my code

import hone

optional_arguments = {
  "delimiters": [","]
}
Hone = hone.Hone(**optional_arguments)
schema = Hone.get_schema('csvschema.json')  # nested JSON schema for input.csv
result = Hone.convert('data.csv', schema=schema)  # final structure, nested according to schema