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Conflicting migrations detected; multiple leaf nodes in the migration graph: (%s). To fix them run 'python makemigrations --merge'

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Exception Class:

Raise code


        if conflicts and not self.merge:
            name_str = "; ".join(
                "%s in %s" % (", ".join(names), app)
                for app, names in conflicts.items()
            raise CommandError(
                "Conflicting migrations detected; multiple leaf nodes in the "
                "migration graph: (%s).\nTo fix them run "
                "'python makemigrations --merge'" % name_str

        # If they want to merge and there's nothing to merge, then politely exit
        if self.merge and not conflicts:
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