'django: migration x in app x has no Migration class

here is the exact error

django.db.migrations.loader.BadMigrationError: Migration 0001_initial in app django_comments has no Migration class

I have no idea what this means and I don't know where to go. I did some work with my venv, making a new one and then I was trying to get everything back to normal. Installing this and that...I lost track of everything I was doing because my laptop died which really pissed me off.

Any idea where to go from here?

EDIT:

If I try to upgrade django_comments I get the following error: 

 Could not find a version that satisfies the requirement django-comments (from versions: 0.2a, 0.3.1a, 0.3.2a, 0.3.3a, 0.3a, 1.0.0.b, 1.0.0.b, 1.0.0.b)

Cleaning up... No distributions matching the version for django-comments Storing debug log for failure in /home/jeff/.pip/pip.log

pythondjangopostgresqldjango-migrations


Solution 1:[1]

I had this problem, and it turned out that I had accidentally copied a non-migration file into one of my migrations folders. Removing the errant file fixed this for me.

Solution 2:[2]

You are probably using an old version of django-contrib-comments that only supports Django 1.6. It will have South migrations in the migrations/ folder, instead of the new Django migrations.

To fix this, simply upgrade django-contrib-comments:

pip install -U django-contrib-comments

Solution 3:[3]

For me the migration file in question was empty. Deleting it solved my problem

Solution 4:[4]

I had a file in the migration folder that didn't belong there. By deleting the misplaced file, I fixed the issue.

Solution 5:[5]

  • find the root directory of python in C: drive then delete python and also delete pip.
  • after deleting these both items download the new python and install it again.

Solution 6:[6]

I've shared my Django ORM DB model between my custom APP and a Django App via symbolic links: ln -s

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 AlexJerez
Solution 2
Solution 3 7guyo
Solution 4 Ramone_Henry
Solution 5 yahya
Solution 6 Simon Crane

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