I'm trying to run a migration D7 to D8 which I've coded. This is the command:

drush migrate-manifest manifest.yml --legacy-db-url=mysql://User:PASSW@localhost/drupal7ddbb --verbose

but basically no response, just something like done... but there is no nodes in the list of content.

Anyone knows how to make a deeper debug in Drupal8 migrations?

Thanks in advance.

  • Can you post the contents of your manifest.yml file and the migrations they reference.
    – benjy
    Feb 16, 2015 at 3:00
  • Hi Ben,just added some code to clarify. Thank you. Feb 16, 2015 at 9:18
  • 1
    The first thing i notice is that the migration id is progweb_custom_blog which isn't what you have in your yaml file.
    – benjy
    Feb 16, 2015 at 12:18
  • ahm, true. Changed, runing and... no new content :-( Feb 20, 2015 at 10:06
  • How far does it get? Any debug output? Make sure you wipe any existing migrate map tables that could have been left over from bad runs.
    – benjy
    Feb 21, 2015 at 2:45

2 Answers 2


Just to clarify 4 years later. At that point, migrate in core was not very stable. All those issues I was facing have gone away now, and migrate works really nice when moving from D7 or D6 to Drupal 8.


A few things I see. const JOIN = 'n.vid = nr.vid'; this is dead code. Not sure where it comes from but as far as I am aware there's nothing in DrupalSqlBase or SqlBase that uses the constant JOIN. I am not sure what this even wants to be.

Your process copies the type and then in the destination I think you try to set the type/bundle to article but that's simply not how this works. Everything under the destination key is passed to the destination plugin as configuration and the way we designed and implemented this system the destination plugins do not change a thing, they just import.


  plugin: progweb_custom_blog
    type: article
    type: constants/type

In your particular case, you could use a map similar to und: en to map blog to article but if you want article nodes then you must use either the constants or the map.

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