Openedx import fails with "'NoneType' object has no attribute 'data_dir'" message

Question

I created a course on my personal openedx instance. Then exported it, and tried to import it into an institutional platform but got the error :

There was an error while importing the new course to our database.
'NoneType' object has no attribute 'data_dir'

enter image description here

How to solve this ?

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Edit: also, duplicated sections are not exported properly. You must create them my click on the create button, then move relevant content into those.

Answer 1

You need to fix some minor issue in the archive.

Within your archive, edit /course/policies/course/policy.json.

Somewhere within it there is a tabs object.

"tabs": [
      {
        "course_staff_only": false,
        "name": "Home",
        "type": "course_info"
      },
      {
        "course_staff_only": false,
        "name": "Course",
        "type": "courseware"
      },
      ...
]

Within it, the type courseware whould be first.

"tabs": [
      {
        "course_staff_only": false,
        "name": "Course",
        "type": "courseware"
      },
      {
        "course_staff_only": false,
        "name": "Home",
        "type": "course_info"
      },
      ...
]

Import then works :

enter image description here