title: Django InconsistentMigrationHistory: Migration X is applied before its dependency Y on database 'default'
body: <p>This question is similar to <a href="https://stackoverflow.com/questions/38996599/django-manage-py-migration-applied-before-its-dependency">Django manage.py: Migration applied before its dependency</a> and <a href="https://stackoverflow.com/questions/44651760/django-db-migrations-exceptions-inconsistentmigrationhistory">django.db.migrations.exceptions.InconsistentMigrationHistory</a>, except that I haven't squashed migrations; I also find the answers to those questions not very specific.</p>
  
  <p>I have an app <code>lucy_web</code> for which <code>python manage.py showmigrations</code> yields</p>
  
  <pre><code>lucy_web
   [X] 0001_initial
   [X] 0002_auto_20170614_2116
   [X] 0003_auto_20170614_2139
   [X] 0004_auto_20170614_2228
   [X] 0005_auto_20170614_2329
   [X] 0006_auto_20170615_2326
   [X] 0007_auto_20170616_1827
   [X] 0008_family_birth_parent
   [X] 0009_auto_20170621_2035
   [X] 0010_family_account_holder
   [X] 0011_auto_20170621_2218
   [X] 0012_auto_20170621_2219
   [X] 0006_auto_20170616_0008
   [X] 0007_auto_20170616_0016
   [X] 0008_auto_20170616_0441
   [X] 0009_merge_20170619_1835
   [X] 0013_merge_20170621_2225
   [X] 0010_auto_20170621_0101
   [X] 0014_merge_20170626_1858
   [X] 0010_family_user
   [X] 0014_merge_20170623_1748
   [X] 0015_merge_20170627_0605
   [X] 0016_auto_20170710_1447
   [X] 0017_auto_20170710_1448
   [X] 0018_session_expert_type
   [X] 0019_auto_20170726_1641
   [X] 0020_auto_20170727_1457
   [X] 0021_auto_20170727_1511
   [X] 0022_auto_20170727_1518
   [X] 0023_auto_20170728_1300
   [X] 0024_auto_20170730_0939
   [X] 0025_auto_20170730_1011
   [X] 0026_auto_20170731_1433
   [X] 0027_auto_20170731_2117
   [X] 0026_category
   [X] 0028_merge_20170801_0732
   [X] 0029_auto_20170801_0736
   [X] 0030_family_lucy_guide
   [X] 0031_family_baby_name
   [X] 0032_auto_20170801_2215
   [X] 0033_auto_20170801_2218
   [X] 0034_auto_20170801_2230
   [X] 0035_remove_expert_activation_date
   [X] 0035_category_inactive
   [X] 0036_merge_20170802_1543
   [X] 0037_auto_20170802_1544
   [X] 0038_auto_20170803_2127
   [X] 0039_family_profile_link
   [X] 0040_family_account_holder_string
   [X] 0041_auto_20170808_0825
   [X] 0024_expertsessiontype_packagesessiontype
   [X] 0042_merge_20170808_1302
   [X] 0043_auto_20170808_1311
   [X] 0044_auto_20170809_0750
   [X] 0045_auto_20170809_1119
   [X] 0046_auto_20170810_1159
   [X] 0047_auto_20170811_0851
   [X] 0048_auto_20170811_0851
   [X] 0049_auto_20170811_0857
   [X] 0050_auto_20170816_0821
   [X] 0051_auto_20170817_1358
   [X] 0052_auto_20170823_1317
   [X] 0053_auto_20170831_1415
   [X] 0054_session_requested_timeframe
   [X] 0055_userapn
   [X] 0055_auto_20170919_1103
   [X] 0056_merge_20170920_1206
   [X] 0057_auto_20171003_1506
   [X] 0058_auto_20171016_2025
   [X] 0059_auto_20171017_1233
   [X] 0060_auto_20171017_1448
   [X] 0061_notification
   [X] 0062_auto_20171019_1322
   [X] 0063_family_tz_string
   [X] 0064_auto_20171019_1357
   [X] 0065_auto_20171023_2251
   [X] 0066_auto_20171027_1512
   [X] 0067_auto_20171108_1719
   [X] 0067_auto_20171108_1427
   [X] 0068_merge_20171109_1418
   [X] 0069_auto_20171202_1606
   [X] 0070_auto_20171204_1217
   [X] 0071_question_conditions
   [X] 0073_auto_20171205_1112
   [X] 0067_auto_20171030_1700
   [X] 0068_merge_20171113_2335
   [X] 0069_auto_20171113_2344
   [X] 0070_auto_20171114_0113
   [X] 0071_merge_20171114_0125
   [X] 0068_merge_20171113_1117
   [X] 0069_merge_20171114_1530
   [X] 0072_merge_20171114_1731
   [X] 0074_merge_20171205_1443
   [X] 0073_auto_20171122_0830
   [X] 0075_merge_20171206_1111
   [X] 0076_auto_20171219_1036
   [X] 0077_session_proposed_time_4
   [X] 0076_auto_20171211_1625
   [X] 0078_merge_20171220_0841
   [X] 0079_session_scheuling_notes
   [X] 0080_auto_20171227_0741
   [X] 0081_auto_20171227_0754
   [X] 0082_session_recommended
   [X] 0069_auto_20171212_0637
   [X] 0078_merge_20180101_2244
   [X] 0083_merge_20180102_1840
   [X] 0084_sessiontype_session_cost
   [X] 0085_session_session_times_provided_at
   [X] 0086_auto_20180105_1501
   [X] 0087_family_recommendations_run_at
   [X] 0084_package_demo
   [X] 0088_merge_20180112_1317
   [X] 0089_session_session_times_reminded_at
   [X] 0089_family_next_outreach
   [X] 0090_merge_20180128_0227
   [X] 0091_family_adopting_or_surrogate
   [X] 0092_auto_20180206_0906
   [X] 0093_auto_20180206_1300
   [X] 0094_auto_20180206_1430
   [X] 0089_auto_20180122_1538
   [X] 0091_merge_20180201_1308
   [X] 0092_merge_20180205_1349
   [X] 0095_merge_20180206_1651
   [X] 0096_auto_20180208_1041
   [X] 0095_preactivationfamily
   [X] 0097_merge_20180208_1042
   [X] 0098_auto_20180208_1528
   [X] 0098_auto_20180208_1327
   [X] 0099_merge_20180208_1638
   [X] 0098_auto_20180208_1119
   [X] 0100_merge_20180208_1759
   [X] 0099_preactivationfamily_alternate_email
   [X] 0101_merge_20180209_1128
   [X] 0102_auto_20180213_1305
   [X] 0103_auto_20180216_1040
   [X] 0102_auto_20180215_1514
   [X] 0104_merge_20180216_1427
   [X] 0103_question_index
   [X] 0105_merge_20180216_1708
   [X] 0106_package_gift_boxes
   [X] 0107_auto_20180220_0534
   [X] 0108_remove_package_includes_boxes
   [X] 0109_family_gift_box_notification_sent_at
   [X] 0110_auto_20180221_0907
   [X] 0111_auto_20180221_0908
   [X] 0112_auto_20180221_0909
   [X] 0102_checkintype
   [X] 0103_auto_20180212_1444
   [X] 0104_checkin
   [X] 0105_auto_20180213_1433
   [X] 0106_auto_20180214_1143
   [X] 0107_auto_20180214_1601
   [X] 0108_auto_20180215_1141
   [X] 0109_merge_20180220_1039
   [X] 0110_auto_20180220_1039
   [X] 0111_merge_20180228_0759
   [X] 0113_merge_20180302_1226
   [X] 0114_family_country
   [X] 0115_auto_20180308_0737
   [X] 0116_auto_20180309_0642
   [X] 0117_auto_20180313_1110
   [X] 0118_auto_20180314_1205
   [X] 0119_auto_20180314_1206
   [X] 0120_auto_20180314_1207
   [X] 0092_auto_20180207_1125
   [X] 0110_merge_20180221_1249
   [X] 0113_merge_20180302_0919
   [X] 0114_merge_20180308_0008
   [X] 0121_merge_20180316_1850
   [X] 0122_auto_20180320_0340
   [X] 0123_auto_20180320_0341
   [X] 0124_auto_20180320_0342
   [X] 0118_company_default_package
   [X] 0122_merge_20180319_1109
   [X] 0122_auto_20180319_1739
   [X] 0123_merge_20180320_1448
   [X] 0125_merge_20180322_1639
   [X] 0126_auto_20180327_1639
   [X] 0127_auto_20180328_1621
   [X] 0125_auto_20180322_1605
   [X] 0126_merge_20180323_1632
   [X] 0128_merge_20180328_1723
   [X] 0129_auto_20180328_1731
   [X] 0126_auto_20180327_0734
   [X] 0127_merge_20180328_0155
   [X] 0130_merge_20180328_2230
   [X] 0127_auto_20180327_1638
   [X] 0128_merge_20180328_1728
   [X] 0130_merge_20180328_1845
   [X] 0131_merge_20180329_0038
   [X] 0132_auto_20180329_1045
   [X] 0129_merge_20180328_1746
   [X] 0131_merge_20180329_0938
   [X] 0133_merge_20180329_1632
   [X] 0134_auto_20180402_1026
   [X] 0135_auto_20180402_1137
   [X] 0136_sessiontype_first_trimester
   [X] 0136_auto_20180403_1321
   [X] 0137_merge_20180403_1550
   [X] 0138_auto_20180404_1316
   [X] 0136_lucyguide_guide_email
   [ ] 0137_auto_20180405_1540
   [X] 0139_merge_20180405_1700
   [X] 0140_auto_20180406_1412
   [X] 0141_auto_20180411_1757
   [X] 0142_remove_question_update_related
   [X] 0143_auto_20180411_1812
   [X] 0141_expert_phone_country
   [X] 0142_preactivationfamily_phone_country
   [X] 0144_merge_20180418_0800
   [X] 0145_sessiontype_short_description
   [X] 0146_auto_20180425_1133
   [X] 0146_auto_20180424_1119
   [X] 0147_merge_20180426_0939
   [X] 0141_auto_20180419_1028
   [X] 0146_merge_20180425_1008
   [X] 0147_merge_20180425_1522
   [X] 0148_merge_20180504_1138
   [X] 0149_auto_20180509_1345
   [X] 0150_family_adoption_date
   [X] 0151_auto_20180511_1357
   [X] 0152_auto_20180511_1403
   [X] 0153_auto_20180515_1246
   [X] 0150_auto_20180514_1410
   [X] 0151_merge_20180517_1043
   [X] 0154_merge_20180517_1753
   [X] 0155_auto_20180518_1334
   [X] 0152_package_preconception
   [X] 0156_merge_20180522_1139
   [X] 0157_auto_20180523_0610
   [X] 0150_auto_20180516_1452
   [X] 0151_merge_20180522_1134
   [X] 0158_merge_20180523_1127
   [X] 0156_lucyguide_intro
   [X] 0159_merge_20180524_1358
   [X] 0151_auto_20180518_1415
   [X] 0157_merge_20180522_1342
   [X] 0158_merge_20180522_1439
   [X] 0152_auto_20180523_1052
   [X] 0153_merge_20180523_1213
   [X] 0159_merge_20180523_1503
   [X] 0160_merge_20180524_1507
   [X] 0161_auto_20180530_2140
   [X] 0161_auto_20180529_1127
   [X] 0162_merge_20180531_0009
   [X] 0163_auto_20180627_1309
   [X] 0164_sessioncategory_name_slug
   [X] 0165_auto_20180627_populate_name_slugs
  </code></pre>
  
  <p>I created the last two migrations (involving <code>name_slugs</code>), but it seemed like the data migration <code>populate_name_slugs</code> was not being run after I edited it, so I deleted the corresponding row from the <code>django_migrations</code> table. </p>
  
  <p>Now, however, even when I try to <code>python manage.py makemigrations</code>, I get the following error:</p>
  
  <pre><code>(venv) Kurts-MacBook-Pro-2:lucy-web kurtpeek$ python manage.py makemigrations
  Traceback (most recent call last):
    File "manage.py", line 28, in &lt;module&gt;
      execute_from_command_line(sys.argv)
    File "/Users/kurtpeek/Documents/Dev/lucy2/lucy-web/venv/lib/python3.6/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
      utility.execute()
    File "/Users/kurtpeek/Documents/Dev/lucy2/lucy-web/venv/lib/python3.6/site-packages/django/core/management/__init__.py", line 356, in execute
      self.fetch_command(subcommand).run_from_argv(self.argv)
    File "/Users/kurtpeek/Documents/Dev/lucy2/lucy-web/venv/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
      self.execute(*args, **cmd_options)
    File "/Users/kurtpeek/Documents/Dev/lucy2/lucy-web/venv/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
      output = self.handle(*args, **options)
    File "/Users/kurtpeek/Documents/Dev/lucy2/lucy-web/venv/lib/python3.6/site-packages/django/core/management/commands/makemigrations.py", line 110, in handle
      loader.check_consistent_history(connection)
    File "/Users/kurtpeek/Documents/Dev/lucy2/lucy-web/venv/lib/python3.6/site-packages/django/db/migrations/loader.py", line 298, in check_consistent_history
      connection.alias,
  django.db.migrations.exceptions.InconsistentMigrationHistory: Migration lucy_web.0139_merge_20180405_1700 is applied before its dependency lucy_web.0137_auto_20180405_1540 on database 'default'.
  </code></pre>
  
  <p>How can I solve this? Can I somehow simply mark the parent as applied?</p>
  
  <p><strong>Update</strong></p>
  
  <p>It would appear that the dependency migration is not even in the <code>django_migrations</code> table:</p>
  
  <p><a href="https://i.stack.imgur.com/U7HoE.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/U7HoE.png" alt="enter image description here"></a></p>
  
  <p>I suppose getting it in this table would fix this problem. How can I do that?</p>