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This article provides an in-depth analysis of the common InconsistentMigrationHistory error in Django, typically caused by inconsistencies between migration history and database state. Based on real-world cases, it examines the root causes and focuses on solutions through cleaning the django_migrations table, while comparing other methods' applicability. With complete code examples and step-by-step instructions, it helps developers understand Django's migration mechanism and master error troubleshooting and repair techniques to ensure smooth database migrations.