error message, ExperimentName

[laurabaxter21]

I've tried using the Project downloader, but i get the following error message:

Querying Project:
Project found - outbreaks
Querying Project Samples:
6 samples found.
Retrieving details in chunks of 50.
Traceback (most recent call last):
File "/Applications/basespace_project_downloader-master/bin/basespace_project_downloader.py", line 125, in
print " Sample found - %s (Experiment: %s)" % (sample_json["SampleId"], sample_json["ExperimentName"])
KeyError: 'ExperimentName'