Memory exhaustion

same problem, I have only 10 taxonomy terms, but rendering of the tree view still cause memory exhaustion. I have to restart the php process to get my site back to work.

I figure that out, I forget to add relationship for taxonomy term, to get it work, you have to do exactly like this steps:

Views Tree with Taxonomy Terms
Creating Taxonomy Terms

Create some Taxonomy terms with parent/child (hierarchical) relationships.

Creating the View

First, create a new term view using the fields row style / unformatted list of fields (it is important that the tree style not be chosen now). Then:

1. Add relationship for taxonomy term: parent term
2. Add field term id (do not use relationship) and exclude it from display
3. Add field term id with relationship, exclude from display
4. Add any fields you want to display, like term name, term description, etc...
5. Change style / format plugin to Tree (Adjacency model)
6. Set Main field to Term ID
7. Set Parent field to Term ID with parent relationship

(These instructions are taken from #1424414-6: How to configure for D7 Profiles/Taxonomy terms.)

But If you have multiple translations of terms, the tree view will show duplicated entities, this is another known issue similar with: https://www.drupal.org/node/2735627

The above instructions helped me a lot: these should be added to the official documentation I think.

+1 to the instructions in #4. Let's use this issue to improve validation and documenation.

Curious if #3332345: Infinite loop issue solves this for you?