There's no upgradeStep for adding the collective.nitf tile if you're upgrading from 1.x to 2.x.

[idgserpro]

In https://github.com/collective/collective.nitf/tree/1.0b10/src/collective/nitf there wasn't a collective.nitf tile, added in https://github.com/collective/collective.nitf/blob/2.0a1/src/collective/nitf/tiles/nitf.pt, but there isn't an upgradeStep that adds this tile when you're upgrading from these major versions.

We suggest a fix in https://github.com/collective/collective.nitf/blob/master/src/collective/nitf/upgrades/v2000/profile/registry.xml, adding the same as https://github.com/collective/collective.nitf/blob/2.1b2/src/collective/nitf/profiles/default/registry.xml#L79 since there's no harm in adding an empty record like this if the user is not using plone.app.tiles.

 <record name="plone.app.tiles">
    <field type="plone.registry.field.List">
      <title>Tiles</title>
      <value_type type="plone.registry.field.TextLine" />
    </field>
    <value purge="false">
      <element>collective.nitf</element>
    </value>
  </record>

[hvelarde]

I think that has to be manually added in the upgrade step to 2001 instead; seems easier and is the right place to put it.

[idgserpro]

We thought about 2000 because, in theory, this fix should be in the first available upgradeStep for 2.x branch (since the tile was added in 2.0a1), but if you think it's better to put in 2001 that's ok.

[hvelarde]

sorry, I though the tile was added later; feel free to add it in 2000 then.