Error 404 not found uploading dataset to YYC Data Collective (CKAN)

问题

We have CKAN 2.7.2 and Ubuntu 14.04

I appear to be unable to upload a dataset to http://yycdatacollective.ucalgary.ca

I fill out all the metadata fields, but as soon as I hit the button to move on to the step to upload the file itself I get the following URL and error:

http://yycdatacollective.ucalgary.ca/dataset/new

But then playing with it I found a temporary workaround for it as explained in following images:

* Not sure why when leaving the url empty then go back to fill in the url, by doing this the submission form will work. Can you please point me to where I can fix the issue. Thank you very much to all in advance! We appreciate any kind of instructions/pointers *

来源：https://stackoverflow.com/questions/58648707/error-404-not-found-uploading-dataset-to-yyc-data-collective-ckan