django.db.migrations.exceptions.NodeNotFoundError while upgrading django

I am upgrading my django project from django1.5 to django1.11.10. while upgrading when I run ./manange.py migrate I am getting django.db.migrations.exceptions.NodeNotFoundError

django.db.migrations.exceptions.NodeNotFoundError: Migration account.0004_auto_20180419_1309 dependencies reference nonexistent parent node (u'admin', u'0003_advertisements_alignedcourses_api_integration_appreciation_certificate_company_company_types_contrib')

I could not find any migration files from my project and I followed some of the solution which I found in internet.

django.db.migrations.exceptions.NodeNotFoundError Migration authentication nonexistent parent node

Can't get rid of "nonexistent parent node" in django 1.11

I reinstalled django.Deleted all .pyc files. deleted all migrations files. Still I am getting the same error.Please help me and can you please explain why it is happening?

I have attached my project structure.

************************************

admin/apps.py

class AdminConfig(AppConfig):

    name = 'apps.admin'

    label = 'admin_app'

account/apps.py

class AccountConfig(AppConfig):

    name = 'account'

    label = 'account_app'

and I have mentioned meta properties for all the admin app models.

class Meta:

        '''

            Meta properties for this model

        '''

        app_label = 'admin_app'

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