"No entities found." on index call

Getting same, thought it was a permissions thing, but couldn't find any permissions.

I have the same problem: with /api/applications/entity_entityform I have no entityform submissions, while api/applications/entity_entityform/1 displays correct result.

I have this problem with Clean entity processor only.

I realized that it works when I add "?parameters[type]=my_entityform_type" to my url. When this is missing, wrong condition is constructed: type='entityform' (entityforms can not have such value in type column). The wrong code is inside ServicesEntityResourceController::propertyQueryOperation().

Care to share the fix?

Is there an update on this, a.vakulenko? You said that you had identified the issue, but didn't say if you had managed to resolve it. If you have, a patch would be greatly appreciated!

This is because of the following code in ServicesEntityResourceControllerClean::transform_values():

   // Default the bundle to the entity_type. This allows eck types that don't use custom bundles to not have to specify the bundle.
    $entity_info = entity_get_info($entity_type);
    if (isset($entity_info['bundle keys'])) {
      foreach ($entity_info['bundle keys'] as $bundle_key) {
        if (!array_key_exists($bundle_key, $values)) {
          $values[$bundle_key] = $entity_type;
        }
      }
    }

This code is incorrect for another reason (see #2068463: Improper use of 'bundle keys' in "clean" controller.) -- but the problem here is that the entity_type is not always the same as the bundle key, and we shouldn't be assuming that it is. I will reroll the patch for the linked issue to include this fix as well.

The latest patch on this constellation of issues is posted at #1950686: Clean Processor not listing entities with custom bundles.

Should we close this as a duplicate?

Sure. Cross posting a link so we don't lose the history.