PostgreSQL: Error 42P10 - there is no unique or exclusion constraint matching the ON CONFLIC about blazorboilerplate HOT 2 OPEN

    public DbSet<PluralFormRule> PluralFormRules { get; set; }

    public DbSet<PluralTranslation> PluralTranslations { get; set; }

    public DbSet<LocalizationRecord> LocalizationRecords { get; set; }

    protected override void OnModelCreating(ModelBuilder builder)
    {
        base.OnModelCreating(builder);

        builder.Entity<LocalizationRecord>().HasIndex(c => new { c.MsgId, c.Culture, c.ContextId }).IsUnique();
        builder.Entity<PluralTranslation>().HasIndex(e => new { e.LocalizationRecordId, e.Index }, "IX_LOCRECID_INDEX").IsUnique();
    }
}